For A pressure of 25.7 inHg would be how many kilopascals?

I did the following, is this correct?

25.7 inHg X 25.4 mm/1in X 101.325 KaPa/760 mmHg = 87.0301 Kapa

So: KaPa = 87.0

That is what I figured it out to be.

87.0 kPa is correct. Note that you are looking for kPa for kilopascals and not KaPa.

Your calculations are almost correct, but you made a small rounding error in your final answer. Here's how to properly convert 25.7 inHg to kilopascals (kPa):

First, convert 25.7 inHg to millimeters of mercury (mmHg):
25.7 inHg × 25.4 mm/1 inHg = 652.78 mmHg

Next, convert mmHg to kilopascals:
652.78 mmHg × 101.325 kPa/760 mmHg = 86.7792 kPa

Therefore, the correct conversion is 86.8 kPa (rounded to one decimal place).