Finding the Fourth Proportional to 17,616.78, 24,311.00 and 9,659.00

Step by Step Solution

1. Step 1: Write the proportion equation
   17,616.78 : 24,311.00 = 9,659.00 : x
2. Step 2: Convert to fraction form
   17,616.78/24,311.00 = 9,659.00/x
3. Step 3: Cross multiply
   17,616.78x = 24,311.00 × 9,659.00
4. Step 4: Simplify right side
   17,616.78x = 234,819,779.15
5. Step 5: Solve for x
   x = 234,819,779.15/17,616.78
6. Step 6: Final answer
   x = 13,329.32