Finding the Fourth Proportional to 152,168.16, 209,977.92 and 88,505.04

Step by Step Solution

1. Step 1: Write the proportion equation
   152,168.16 : 209,977.92 = 88,505.04 : x
2. Step 2: Convert to fraction form
   152,168.16/209,977.92 = 88,505.04/x
3. Step 3: Cross multiply
   152,168.16x = 209,977.92 × 88,505.04
4. Step 4: Simplify right side
   152,168.16x = 18,584,104,208.72
5. Step 5: Solve for x
   x = 18,584,104,208.72/152,168.16
6. Step 6: Final answer
   x = 122,128.73