Finding the Fourth Proportional to 132,311.62, 198,404.72 and 51,296.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,311.62 : 198,404.72 = 51,296.50 : x
2. Step 2: Convert to fraction form
   132,311.62/198,404.72 = 51,296.50/x
3. Step 3: Cross multiply
   132,311.62x = 198,404.72 × 51,296.50
4. Step 4: Simplify right side
   132,311.62x = 10,177,466,470.97
5. Step 5: Solve for x
   x = 10,177,466,470.97/132,311.62
6. Step 6: Final answer
   x = 76,920.43