Finding the Fourth Proportional to 132,561.50, 182,934.05 and 72,132.39

Step by Step Solution

1. Step 1: Write the proportion equation
   132,561.50 : 182,934.05 = 72,132.39 : x
2. Step 2: Convert to fraction form
   132,561.50/182,934.05 = 72,132.39/x
3. Step 3: Cross multiply
   132,561.50x = 182,934.05 × 72,132.39
4. Step 4: Simplify right side
   132,561.50x = 13,195,469,878.22
5. Step 5: Solve for x
   x = 13,195,469,878.22/132,561.50
6. Step 6: Final answer
   x = 99,542.25