Finding the Fourth Proportional to 88,128.72, 132,139.08 and 34,756.20

Step by Step Solution

1. Step 1: Write the proportion equation
   88,128.72 : 132,139.08 = 34,756.20 : x
2. Step 2: Convert to fraction form
   88,128.72/132,139.08 = 34,756.20/x
3. Step 3: Cross multiply
   88,128.72x = 132,139.08 × 34,756.20
4. Step 4: Simplify right side
   88,128.72x = 4,592,652,292.30
5. Step 5: Solve for x
   x = 4,592,652,292.30/88,128.72
6. Step 6: Final answer
   x = 52,113.00