Finding the Fourth Proportional to 22,689.39, 31,284.22 and 14,728.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,689.39 : 31,284.22 = 14,728.71 : x
2. Step 2: Convert to fraction form
   22,689.39/31,284.22 = 14,728.71/x
3. Step 3: Cross multiply
   22,689.39x = 31,284.22 × 14,728.71
4. Step 4: Simplify right side
   22,689.39x = 460,776,203.96
5. Step 5: Solve for x
   x = 460,776,203.96/22,689.39
6. Step 6: Final answer
   x = 20,308.00