Finding the Fourth Proportional to 14,020.47, 21,061.25 and 8,476.43

Step by Step Solution

1. Step 1: Write the proportion equation
   14,020.47 : 21,061.25 = 8,476.43 : x
2. Step 2: Convert to fraction form
   14,020.47/21,061.25 = 8,476.43/x
3. Step 3: Cross multiply
   14,020.47x = 21,061.25 × 8,476.43
4. Step 4: Simplify right side
   14,020.47x = 178,524,063.65
5. Step 5: Solve for x
   x = 178,524,063.65/14,020.47
6. Step 6: Final answer
   x = 12,733.10