Finding the Fourth Proportional to 16,454.28, 22,706.91 and 9,285.71

Step by Step Solution

1. Step 1: Write the proportion equation
   16,454.28 : 22,706.91 = 9,285.71 : x
2. Step 2: Convert to fraction form
   16,454.28/22,706.91 = 9,285.71/x
3. Step 3: Cross multiply
   16,454.28x = 22,706.91 × 9,285.71
4. Step 4: Simplify right side
   16,454.28x = 210,849,831.59
5. Step 5: Solve for x
   x = 210,849,831.59/16,454.28
6. Step 6: Final answer
   x = 12,814.28