Finding the Fourth Proportional to 90,404.15, 124,757.15 and 50,117.90

Step by Step Solution

1. Step 1: Write the proportion equation
   90,404.15 : 124,757.15 = 50,117.90 : x
2. Step 2: Convert to fraction form
   90,404.15/124,757.15 = 50,117.90/x
3. Step 3: Cross multiply
   90,404.15x = 124,757.15 × 50,117.90
4. Step 4: Simplify right side
   90,404.15x = 6,252,565,493.61
5. Step 5: Solve for x
   x = 6,252,565,493.61/90,404.15
6. Step 6: Final answer
   x = 69,162.38