Finding the Fourth Proportional to 17,214.39, 23,753.61 and 9,660.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,214.39 : 23,753.61 = 9,660.15 : x
2. Step 2: Convert to fraction form
   17,214.39/23,753.61 = 9,660.15/x
3. Step 3: Cross multiply
   17,214.39x = 23,753.61 × 9,660.15
4. Step 4: Simplify right side
   17,214.39x = 229,463,435.64
5. Step 5: Solve for x
   x = 229,463,435.64/17,214.39
6. Step 6: Final answer
   x = 13,329.75