Finding the Fourth Proportional to 90,002.29, 124,200.78 and 49,715.18

Step by Step Solution

1. Step 1: Write the proportion equation
   90,002.29 : 124,200.78 = 49,715.18 : x
2. Step 2: Convert to fraction form
   90,002.29/124,200.78 = 49,715.18/x
3. Step 3: Cross multiply
   90,002.29x = 124,200.78 × 49,715.18
4. Step 4: Simplify right side
   90,002.29x = 6,174,664,490.79
5. Step 5: Solve for x
   x = 6,174,664,490.79/90,002.29
6. Step 6: Final answer
   x = 68,605.64