Finding the Fourth Proportional to 90,441.12, 124,851.60 and 60,276.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,441.12 : 124,851.60 = 60,276.72 : x
2. Step 2: Convert to fraction form
   90,441.12/124,851.60 = 60,276.72/x
3. Step 3: Cross multiply
   90,441.12x = 124,851.60 × 60,276.72
4. Step 4: Simplify right side
   90,441.12x = 7,525,644,934.75
5. Step 5: Solve for x
   x = 7,525,644,934.75/90,441.12
6. Step 6: Final answer
   x = 83,210.43