Finding the Fourth Proportional to 17,142.69, 23,658.09 and 9,589.74

Step by Step Solution

1. Step 1: Write the proportion equation
   17,142.69 : 23,658.09 = 9,589.74 : x
2. Step 2: Convert to fraction form
   17,142.69/23,658.09 = 9,589.74/x
3. Step 3: Cross multiply
   17,142.69x = 23,658.09 × 9,589.74
4. Step 4: Simplify right side
   17,142.69x = 226,874,932.00
5. Step 5: Solve for x
   x = 226,874,932.00/17,142.69
6. Step 6: Final answer
   x = 13,234.50