Finding the Fourth Proportional to 132,665.64, 198,562.14 and 72,602.52

Step by Step Solution

1. Step 1: Write the proportion equation
   132,665.64 : 198,562.14 = 72,602.52 : x
2. Step 2: Convert to fraction form
   132,665.64/198,562.14 = 72,602.52/x
3. Step 3: Cross multiply
   132,665.64x = 198,562.14 × 72,602.52
4. Step 4: Simplify right side
   132,665.64x = 14,416,111,740.59
5. Step 5: Solve for x
   x = 14,416,111,740.59/132,665.64
6. Step 6: Final answer
   x = 108,665.00