Finding the Fourth Proportional to 16,613.85, 24,915.40 and 5,517.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,613.85 : 24,915.40 = 5,517.56 : x
2. Step 2: Convert to fraction form
   16,613.85/24,915.40 = 5,517.56/x
3. Step 3: Cross multiply
   16,613.85x = 24,915.40 × 5,517.56
4. Step 4: Simplify right side
   16,613.85x = 137,472,245.40
5. Step 5: Solve for x
   x = 137,472,245.40/16,613.85
6. Step 6: Final answer
   x = 8,274.56