Finding the Fourth Proportional to 14,061.28, 21,081.41 and 8,513.29

Step by Step Solution

1. Step 1: Write the proportion equation
   14,061.28 : 21,081.41 = 8,513.29 : x
2. Step 2: Convert to fraction form
   14,061.28/21,081.41 = 8,513.29/x
3. Step 3: Cross multiply
   14,061.28x = 21,081.41 × 8,513.29
4. Step 4: Simplify right side
   14,061.28x = 179,472,156.94
5. Step 5: Solve for x
   x = 179,472,156.94/14,061.28
6. Step 6: Final answer
   x = 12,763.57