Finding the Fourth Proportional to 17,061.17, 25,575.21 and 8,291.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,061.17 : 25,575.21 = 8,291.30 : x
2. Step 2: Convert to fraction form
   17,061.17/25,575.21 = 8,291.30/x
3. Step 3: Cross multiply
   17,061.17x = 25,575.21 × 8,291.30
4. Step 4: Simplify right side
   17,061.17x = 212,051,610.80
5. Step 5: Solve for x
   x = 212,051,610.80/17,061.17
6. Step 6: Final answer
   x = 12,428.91