Finding the Fourth Proportional to 95,128.50, 131,275.72 and 52,686.12

Step by Step Solution

1. Step 1: Write the proportion equation
   95,128.50 : 131,275.72 = 52,686.12 : x
2. Step 2: Convert to fraction form
   95,128.50/131,275.72 = 52,686.12/x
3. Step 3: Cross multiply
   95,128.50x = 131,275.72 × 52,686.12
4. Step 4: Simplify right side
   95,128.50x = 6,916,408,402.86
5. Step 5: Solve for x
   x = 6,916,408,402.86/95,128.50
6. Step 6: Final answer
   x = 72,705.95