Finding the Fourth Proportional to 57,600.56, 79,436.05 and 39,477.62

Step by Step Solution

1. Step 1: Write the proportion equation
   57,600.56 : 79,436.05 = 39,477.62 : x
2. Step 2: Convert to fraction form
   57,600.56/79,436.05 = 39,477.62/x
3. Step 3: Cross multiply
   57,600.56x = 79,436.05 × 39,477.62
4. Step 4: Simplify right side
   57,600.56x = 3,135,946,196.20
5. Step 5: Solve for x
   x = 3,135,946,196.20/57,600.56
6. Step 6: Final answer
   x = 54,442.98