Finding the Fourth Proportional to 17,028.16, 25,557.69 and 8,713.92

Step by Step Solution

1. Step 1: Write the proportion equation
   17,028.16 : 25,557.69 = 8,713.92 : x
2. Step 2: Convert to fraction form
   17,028.16/25,557.69 = 8,713.92/x
3. Step 3: Cross multiply
   17,028.16x = 25,557.69 × 8,713.92
4. Step 4: Simplify right side
   17,028.16x = 222,707,666.04
5. Step 5: Solve for x
   x = 222,707,666.04/17,028.16
6. Step 6: Final answer
   x = 13,078.79