Finding the Fourth Proportional to 57,561.92, 79,405.04 and 39,625.89

Step by Step Solution

1. Step 1: Write the proportion equation
   57,561.92 : 79,405.04 = 39,625.89 : x
2. Step 2: Convert to fraction form
   57,561.92/79,405.04 = 39,625.89/x
3. Step 3: Cross multiply
   57,561.92x = 79,405.04 × 39,625.89
4. Step 4: Simplify right side
   57,561.92x = 3,146,495,380.49
5. Step 5: Solve for x
   x = 3,146,495,380.49/57,561.92
6. Step 6: Final answer
   x = 54,662.79