Finding the Fourth Proportional to 11,766.87, 17,647.56 and 5,520.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,766.87 : 17,647.56 = 5,520.96 : x
2. Step 2: Convert to fraction form
   11,766.87/17,647.56 = 5,520.96/x
3. Step 3: Cross multiply
   11,766.87x = 17,647.56 × 5,520.96
4. Step 4: Simplify right side
   11,766.87x = 97,431,472.86
5. Step 5: Solve for x
   x = 97,431,472.86/11,766.87
6. Step 6: Final answer
   x = 8,280.15