Finding the Fourth Proportional to 90,401.27, 124,740.63 and 50,115

Step by Step Solution

1. Step 1: Write the proportion equation
   90,401.27 : 124,740.63 = 50,115 : x
2. Step 2: Convert to fraction form
   90,401.27/124,740.63 = 50,115/x
3. Step 3: Cross multiply
   90,401.27x = 124,740.63 × 50,115
4. Step 4: Simplify right side
   90,401.27x = 6,251,376,672.45
5. Step 5: Solve for x
   x = 6,251,376,672.45/90,401.27
6. Step 6: Final answer
   x = 69,151.43