Finding the Fourth Proportional to 132,815.59, 183,280.18 and 72,384.93

Step by Step Solution

1. Step 1: Write the proportion equation
   132,815.59 : 183,280.18 = 72,384.93 : x
2. Step 2: Convert to fraction form
   132,815.59/183,280.18 = 72,384.93/x
3. Step 3: Cross multiply
   132,815.59x = 183,280.18 × 72,384.93
4. Step 4: Simplify right side
   132,815.59x = 13,266,722,999.69
5. Step 5: Solve for x
   x = 13,266,722,999.69/132,815.59
6. Step 6: Final answer
   x = 99,888.30