Finding the Fourth Proportional to 17,217.91, 23,758.89 and 9,665.07

Step by Step Solution

1. Step 1: Write the proportion equation
   17,217.91 : 23,758.89 = 9,665.07 : x
2. Step 2: Convert to fraction form
   17,217.91/23,758.89 = 9,665.07/x
3. Step 3: Cross multiply
   17,217.91x = 23,758.89 × 9,665.07
4. Step 4: Simplify right side
   17,217.91x = 229,631,245.12
5. Step 5: Solve for x
   x = 229,631,245.12/17,217.91
6. Step 6: Final answer
   x = 13,336.77