Finding the Fourth Proportional to 67,499.52, 93,160.76 and 39,221.61

Step by Step Solution

1. Step 1: Write the proportion equation
   67,499.52 : 93,160.76 = 39,221.61 : x
2. Step 2: Convert to fraction form
   67,499.52/93,160.76 = 39,221.61/x
3. Step 3: Cross multiply
   67,499.52x = 93,160.76 × 39,221.61
4. Step 4: Simplify right side
   67,499.52x = 3,653,914,799.92
5. Step 5: Solve for x
   x = 3,653,914,799.92/67,499.52
6. Step 6: Final answer
   x = 54,132.46