Finding the Fourth Proportional to 108,231.17, 149,359.57 and 60,485.31

Step by Step Solution

1. Step 1: Write the proportion equation
   108,231.17 : 149,359.57 = 60,485.31 : x
2. Step 2: Convert to fraction form
   108,231.17/149,359.57 = 60,485.31/x
3. Step 3: Cross multiply
   108,231.17x = 149,359.57 × 60,485.31
4. Step 4: Simplify right side
   108,231.17x = 9,034,059,892.92
5. Step 5: Solve for x
   x = 9,034,059,892.92/108,231.17
6. Step 6: Final answer
   x = 83,470.04