Finding the Fourth Proportional to 22,689.56, 31,308.72 and 14,310.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,689.56 : 31,308.72 = 14,310.92 : x
2. Step 2: Convert to fraction form
   22,689.56/31,308.72 = 14,310.92/x
3. Step 3: Cross multiply
   22,689.56x = 31,308.72 × 14,310.92
4. Step 4: Simplify right side
   22,689.56x = 448,056,587.22
5. Step 5: Solve for x
   x = 448,056,587.22/22,689.56
6. Step 6: Final answer
   x = 19,747.26