Finding the Fourth Proportional to 152,057.80, 209,868.24 and 88,404.76

Step by Step Solution

1. Step 1: Write the proportion equation
   152,057.80 : 209,868.24 = 88,404.76 : x
2. Step 2: Convert to fraction form
   152,057.80/209,868.24 = 88,404.76/x
3. Step 3: Cross multiply
   152,057.80x = 209,868.24 × 88,404.76
4. Step 4: Simplify right side
   152,057.80x = 18,553,351,388.82
5. Step 5: Solve for x
   x = 18,553,351,388.82/152,057.80
6. Step 6: Final answer
   x = 122,015.12