Finding the Fourth Proportional to 22,638.53, 31,239.69 and 12,566.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,638.53 : 31,239.69 = 12,566.48 : x
2. Step 2: Convert to fraction form
   22,638.53/31,239.69 = 12,566.48/x
3. Step 3: Cross multiply
   22,638.53x = 31,239.69 × 12,566.48
4. Step 4: Simplify right side
   22,638.53x = 392,572,939.59
5. Step 5: Solve for x
   x = 392,572,939.59/22,638.53
6. Step 6: Final answer
   x = 17,340.92