Finding the Fourth Proportional to 152,002.72, 209,757.49 and 88,335.64

Step by Step Solution

1. Step 1: Write the proportion equation
   152,002.72 : 209,757.49 = 88,335.64 : x
2. Step 2: Convert to fraction form
   152,002.72/209,757.49 = 88,335.64/x
3. Step 3: Cross multiply
   152,002.72x = 209,757.49 × 88,335.64
4. Step 4: Simplify right side
   152,002.72x = 18,529,062,123.94
5. Step 5: Solve for x
   x = 18,529,062,123.94/152,002.72
6. Step 6: Final answer
   x = 121,899.54