IMHO, You have made a few grievous scriptural errors.
1. The 4th beasts does not receive a mortal wound. One of the head(s) of the beast with 7 heads received the wound. Rev 13:3
How many heads does a man have?
I don't make errors when I talk about Prophesies, I may just understand things you probably don't understand as of yet or maybe have never heard of. When I am espousing a guess I qualify it as such. When I put forth deep truths, listen up. I don't joke around with the holy word of God. It's my calling.
The 4 Beasts from Daniel on are the exact same Beasts as the seven in Revelation, only John is looking back in time at all 7 of the Beasts because he is in the future looking back in time. So, he sees Greece(Leopard), Babylon(Lion) and Persia(Bear) naming them so we will know they are the same Beasts of Daniel. Then he speaks of the Beast that received the Mortal Wound (Rome)
AND the Beast that Heals that Mortal Wound of nigh 2000 years, when Israel finally gets conquered again by a POWER (Animalistic Dominion) Kingdom and that will be by the Anti-Christ himself, the 5th Beast of Daniel, the 7th Beast in Rev. 13, now lets figure out who the two other Beasts were which Daniel was never told about because he was LOOKING FORWARD, whereas John was looking backwards in time. Lets see, what other two powers ruled over Israel and the Mediterranean Sea Region? Might it be Egypt and Assyria? Ding, ding, ring the bell chicken dinner/winner.
There are 7 Beast Powers that rule over Israel while she was a nation, from Egypt to Rome equals six, then Israel became as Dead Men's Bones, they were not a nation in God's eyes for nigh 2000 years so they could not be ruled over, and the Church came into being, and we know Jesus said that the gates of hell shall not prevail against my church, so we (church) turned Rome from a Beast into a conveyor belt of the Gospel of Jesus Christ, thus the Mortal Wound, there was no Beast for nigh 2000 years.
This 7 Headed Beast is a figurative beast which God is using in Juxtaposition to all 7 Kingdoms which rule over Israel and the Mediterranean Sea Region, while Israel (the bible is about Israel) is seen as a nation by God, so From Egypt to 70ish-90ish AD and then staring again in 1948. Thus the Ottoman Empire nor the Brits are seem as Beasts by God. These Beasts all arise out of the great sea (Mediterranean Sea) in order to show whom they rule over(Israel/Mediterranean Nations) in this animalistic domineering type of way.
Rev. 13:1 And I stood upon the sand of the sea, and saw a
beast rise up out of the sea, having
seven heads and ten horns, and upon his horns ten crowns, and upon his heads the name of
blasphemy.
2 And the beast which I saw was like unto a
leopard, and his feet were as the feet of a
bear, and his mouth as the mouth of a
lion:
(Notice the REVERSE order/Looking BACK) and the dragon gave him his power, and his seat, and great authority.
3 And I saw
one of his heads as it were wounded to death(Rome); and
his deadly wound was healed (The Anti-Christ revives the Beast by Conquering Israel): and all the world wondered after the beast.
Why should I care how many heads a man has when God is showing us a figurative Seven Headed Beast just like he showed us a 5 Part Statue? Gold, Silver, Brass, Iron AND Iron and Clay mixed together.
2. The last beast of Daniel, referring to the beast that comes out of the sea, is not a horn. The horns are ON the beast, they are not the beast itself.
Daniel 7 makes that abundantly clear. The beast does not wear a crown, the horns do.
I can prove the Last Beast is a man called the Little Horn. First, lets put down some factoids for a reference.
Dan. 7:17 These great beasts,
which are four, are four kings, which shall arise out of the earth.
All of these Beast Kingdoms started out with one man/one king being that Dominant Ruler !! These Four were indeed Kingdoms where they all passed they Beast Kingdoms onto others. The Little Horn doesn't do that he dies while still the Beast power over Israel and the Mediterranean Sea Region. Unlike all of the others !!
Dan. 7:11 I beheld then because of the voice of the great words which the
horn spake(man speaking): I beheld even till the
beast was slain, and his
body destroyed, and
given to the burning flame.
12 As concerning the
rest of the beasts,
(Babylon, Persia, Greece and Rome) they had their
dominion taken away: yet their lives were prolonged for a season and time.
So, the Little Horn is SPECIFICALLY called a Beast in verse 11, he's killed and cast into hell just like Rev. 19:20 says, he and the false prophet are cast into hellfire. Then Daniel writes, as for the rest of the Beasts, they all lost dominion but yet they lived on for a time and a season. Babylon was Alexander the Greats home when he died, Persia is Iran, Greece is still a nation as is Italy(Rome). The Last Beast is not Rome, its the Little Horn, but why is it called the Little Horn? Because Horns usually stands for kingdoms in the bible by telling us this is a "Little Horn" God is telling us this ONE MAN will never pass his kingdom on to another man like all of the others did, thus he is diverse from the first (Rome) like verse 24 says !!
Lets look at the Fourth Beast and the 10 Horns AND the Little Horn passage.
Dan. 7:7 After this I saw in the night visions, and behold a
fourth beast(Rome), dreadful and terrible, and strong exceedingly; and it had great iron teeth: it devoured and brake in pieces, and stamped the residue with the feet of it: and it was diverse from all the beasts that were before it;
and it had
ten horns.
8
I considered the horns, and, behold,
there came up among them another little horn, before whom there were
three(or meaning this is the fourth) of the first horns plucked up by the roots: and, behold, in this horn were eyes like the
eyes of man, and
a mouth speaking great things.
Rome was indeed the Fourth Beast, the Chaldean language is used here by Daniel. I will get to why this could be calling Rome the Fourth Beast later via the three which were plucked up, its a riddle really. Anyway, Rome is the fourth beast, then 10 arise out of her head, the number 10 means completion, so when Rome goes away as a Beast Gabriel is telling Daniel that "10" or the complete number thereof or all Europe consisting of however many nations it is at that time, will eventually arise to power, but as Daniel chapter 2 says they will be partly strong and partly weak, they will be like unto Iron & Clay, meaning of course you will have France, Germany, Spain, (used to have England) and you will also have Luxembourg, Latvia, Cyprus, Estonia, Malta etc. hence the partly strong and partly weak mix and match of kingdoms.
Try as they might these 10 (Europe) could never reunite, Charlemagne tried to reunite them, as did Napoleon, as did wacky Hitler with his Third Reich effort, but to no avail. Dan. 2:43 says, they will
mingle themselves with the seed of men (Royal Marriage) but
they will not cleave unto one another just as Iron doesn't mix with Clay. So, what this basically says is that after Israel is brought back to life, a ununified Europe (10) will reform, they will be as Iron and Clay, made up of partly strong and partly weak nations, but in the very end (see Rev. 17:12) they will solve their unification problems by giving all of their powers over unto ONE MAN the soon to come Anti-Christ/Beast.
As per the three that are plucked up, I think the Chaldean language here is looking back at the three other Beast Kingdoms named in Dan. chapter 7, and that the number three here is an Ordinal number instead of a Cardinal number. In other words there were three Beasts plucked up before this Fourth Beast comes to power, it's not three of the 10 (which is Europe) that are plucked up. This is why, imho, nowhere else in the bible does it say any of the 10 are done away with. But we always have a Fourth Beast in Revelation also. (JMHO there)