Finding the Fourth Proportional to 132,816.42, 183,281.27 and 72,385.83

Step by Step Solution

1. Step 1: Write the proportion equation
   132,816.42 : 183,281.27 = 72,385.83 : x
2. Step 2: Convert to fraction form
   132,816.42/183,281.27 = 72,385.83/x
3. Step 3: Cross multiply
   132,816.42x = 183,281.27 × 72,385.83
4. Step 4: Simplify right side
   132,816.42x = 13,266,966,490.48
5. Step 5: Solve for x
   x = 13,266,966,490.48/132,816.42
6. Step 6: Final answer
   x = 99,889.51