Finding the Fourth Proportional to 17,240.72, 23,792.20 and 9,687.04

Step by Step Solution

1. Step 1: Write the proportion equation
   17,240.72 : 23,792.20 = 9,687.04 : x
2. Step 2: Convert to fraction form
   17,240.72/23,792.20 = 9,687.04/x
3. Step 3: Cross multiply
   17,240.72x = 23,792.20 × 9,687.04
4. Step 4: Simplify right side
   17,240.72x = 230,475,993.09
5. Step 5: Solve for x
   x = 230,475,993.09/17,240.72
6. Step 6: Final answer
   x = 13,368.12