Finding the Fourth Proportional to 132,865.74, 183,354.61 and 72,436.38

Step by Step Solution

1. Step 1: Write the proportion equation
   132,865.74 : 183,354.61 = 72,436.38 : x
2. Step 2: Convert to fraction form
   132,865.74/183,354.61 = 72,436.38/x
3. Step 3: Cross multiply
   132,865.74x = 183,354.61 × 72,436.38
4. Step 4: Simplify right side
   132,865.74x = 13,281,545,061.38
5. Step 5: Solve for x
   x = 13,281,545,061.38/132,865.74
6. Step 6: Final answer
   x = 99,962.15