Finding the Fourth Proportional to 17,155.29, 23,672.39 and 9,600.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,155.29 : 23,672.39 = 9,600.57 : x
2. Step 2: Convert to fraction form
   17,155.29/23,672.39 = 9,600.57/x
3. Step 3: Cross multiply
   17,155.29x = 23,672.39 × 9,600.57
4. Step 4: Simplify right side
   17,155.29x = 227,268,389.26
5. Step 5: Solve for x
   x = 227,268,389.26/17,155.29
6. Step 6: Final answer
   x = 13,247.71