Finding the Fourth Proportional to 67,561.32, 93,231.90 and 39,264.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,561.32 : 93,231.90 = 39,264.78 : x
2. Step 2: Convert to fraction form
   67,561.32/93,231.90 = 39,264.78/x
3. Step 3: Cross multiply
   67,561.32x = 93,231.90 × 39,264.78
4. Step 4: Simplify right side
   67,561.32x = 3,660,730,042.48
5. Step 5: Solve for x
   x = 3,660,730,042.48/67,561.32
6. Step 6: Final answer
   x = 54,183.81