Finding the Fourth Proportional to 90,351.72, 124,706.18 and 60,138.24

Step by Step Solution

1. Step 1: Write the proportion equation
   90,351.72 : 124,706.18 = 60,138.24 : x
2. Step 2: Convert to fraction form
   90,351.72/124,706.18 = 60,138.24/x
3. Step 3: Cross multiply
   90,351.72x = 124,706.18 × 60,138.24
4. Step 4: Simplify right side
   90,351.72x = 7,499,610,182.32
5. Step 5: Solve for x
   x = 7,499,610,182.32/90,351.72
6. Step 6: Final answer
   x = 83,004.62