Finding the Fourth Proportional to 17,026.62, 23,490.27 and 12,561

Step by Step Solution

1. Step 1: Write the proportion equation
   17,026.62 : 23,490.27 = 12,561 : x
2. Step 2: Convert to fraction form
   17,026.62/23,490.27 = 12,561/x
3. Step 3: Cross multiply
   17,026.62x = 23,490.27 × 12,561
4. Step 4: Simplify right side
   17,026.62x = 295,061,281.47
5. Step 5: Solve for x
   x = 295,061,281.47/17,026.62
6. Step 6: Final answer
   x = 17,329.41