Finding the Fourth Proportional to 22,638.27, 31,240.94 and 12,566.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,638.27 : 31,240.94 = 12,566.55 : x
2. Step 2: Convert to fraction form
   22,638.27/31,240.94 = 12,566.55/x
3. Step 3: Cross multiply
   22,638.27x = 31,240.94 × 12,566.55
4. Step 4: Simplify right side
   22,638.27x = 392,590,771.72
5. Step 5: Solve for x
   x = 392,590,771.72/22,638.27
6. Step 6: Final answer
   x = 17,341.91