Finding the Fourth Proportional to 22,638.58, 31,240.65 and 12,566.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,638.58 : 31,240.65 = 12,566.76 : x
2. Step 2: Convert to fraction form
   22,638.58/31,240.65 = 12,566.76/x
3. Step 3: Cross multiply
   22,638.58x = 31,240.65 × 12,566.76
4. Step 4: Simplify right side
   22,638.58x = 392,593,594.59
5. Step 5: Solve for x
   x = 392,593,594.59/22,638.58
6. Step 6: Final answer
   x = 17,341.79