I have an equation in the form y = ....., but I need it in the forum x = ... so that I can integrate. The formula is so huge I'm not sure how to get in terms of x:

y = -.0024222231x^4 + .1185013856x^3 - 2.120031637x^2 + 15.84425439x - 25.24647526

I know you can move the last value over and maybe factor out an x, but that doesn't seem to help any. Any ideas or hints?