Finding the Fourth Proportional to 131,025.60, 196,684.20 and 71,976.60

Step by Step Solution

1. Step 1: Write the proportion equation
   131,025.60 : 196,684.20 = 71,976.60 : x
2. Step 2: Convert to fraction form
   131,025.60/196,684.20 = 71,976.60/x
3. Step 3: Cross multiply
   131,025.60x = 196,684.20 × 71,976.60
4. Step 4: Simplify right side
   131,025.60x = 14,156,659,989.72
5. Step 5: Solve for x
   x = 14,156,659,989.72/131,025.60
6. Step 6: Final answer
   x = 108,044.99