Finding the Fourth Proportional to 67,677.06, 93,403.89 and 39,391.86

Step by Step Solution

1. Step 1: Write the proportion equation
   67,677.06 : 93,403.89 = 39,391.86 : x
2. Step 2: Convert to fraction form
   67,677.06/93,403.89 = 39,391.86/x
3. Step 3: Cross multiply
   67,677.06x = 93,403.89 × 39,391.86
4. Step 4: Simplify right side
   67,677.06x = 3,679,352,958.34
5. Step 5: Solve for x
   x = 3,679,352,958.34/67,677.06
6. Step 6: Final answer
   x = 54,366.32