Finding the Fourth Proportional to 117,630.72, 162,330.72 and 63,915.36

Step by Step Solution

1. Step 1: Write the proportion equation
   117,630.72 : 162,330.72 = 63,915.36 : x
2. Step 2: Convert to fraction form
   117,630.72/162,330.72 = 63,915.36/x
3. Step 3: Cross multiply
   117,630.72x = 162,330.72 × 63,915.36
4. Step 4: Simplify right side
   117,630.72x = 10,375,426,407.86
5. Step 5: Solve for x
   x = 10,375,426,407.86/117,630.72
6. Step 6: Final answer
   x = 88,203.37