Answer
$x = 86.5~m$
$y = 25.1~m$
Work Step by Step
We can find the horizontal displacement from home plate at $t = 4.50~s$:
$x = v_x~t$
$x = (33.53~m/s)~(cos~55.0^{\circ})(4.50~s)$
$x = 86.5~m$
We can find the height $y$ at $t = 4.50~s$:
$y = y_0+v_{0y}~t+\frac{1}{2}a_y~t^2$
$y = (0.762~m)+(33.53~m/s)~(sin~55.0^{\circ})(4.50~s)+\frac{1}{2}(-9.8~m/s^2)~(4.50~s)^2$
$y = 25.1~m$
