Finding the Fourth Proportional to 17,057.24, 25,538.61 and 8,719.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,057.24 : 25,538.61 = 8,719.30 : x
2. Step 2: Convert to fraction form
   17,057.24/25,538.61 = 8,719.30/x
3. Step 3: Cross multiply
   17,057.24x = 25,538.61 × 8,719.30
4. Step 4: Simplify right side
   17,057.24x = 222,678,802.17
5. Step 5: Solve for x
   x = 222,678,802.17/17,057.24
6. Step 6: Final answer
   x = 13,054.80