Finding the Fourth Proportional to 22,794.29, 31,456.15 and 12,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,794.29 : 31,456.15 = 12,722.72 : x
2. Step 2: Convert to fraction form
   22,794.29/31,456.15 = 12,722.72/x
3. Step 3: Cross multiply
   22,794.29x = 31,456.15 × 12,722.72
4. Step 4: Simplify right side
   22,794.29x = 400,207,916.37
5. Step 5: Solve for x
   x = 400,207,916.37/22,794.29
6. Step 6: Final answer
   x = 17,557.38