Finding the Fourth Proportional to 17,141.29, 25,666.81 and 13,791.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,141.29 : 25,666.81 = 13,791.71 : x
2. Step 2: Convert to fraction form
   17,141.29/25,666.81 = 13,791.71/x
3. Step 3: Cross multiply
   17,141.29x = 25,666.81 × 13,791.71
4. Step 4: Simplify right side
   17,141.29x = 353,989,229.83
5. Step 5: Solve for x
   x = 353,989,229.83/17,141.29
6. Step 6: Final answer
   x = 20,651.26