This is the explanation I was given: “The fourth beast is a fourth empire that will be on the earth and will be different from all other empires. It will crush the whole earth and trample it down.
And then there will be a fourth empire, as strong as iron, which shatters and breaks everything. And just as iron shatters everything, it will shatter and crush all the earlier empires.
Then the one who had been living forever came and pronounced judgment in favor of the people of the Supreme God. The time had arrived for God's people to receive royal power.
The ten horns are ten kings who will rule that empire. Then another king will appear; he will be very different from the earlier ones and will overthrow three kings.
As I was watching, a fourth beast appeared. It was powerful, horrible, terrifying. With its huge iron teeth it crushed its victims, and then it trampled on them. Unlike the other beasts, it had ten horns.