Finding the Fourth Proportional to 22,548, 31,116.24 and 12,612

Step by Step Solution

1. Step 1: Write the proportion equation
   22,548 : 31,116.24 = 12,612 : x
2. Step 2: Convert to fraction form
   22,548/31,116.24 = 12,612/x
3. Step 3: Cross multiply
   22,548x = 31,116.24 × 12,612
4. Step 4: Simplify right side
   22,548x = 392,438,018.88
5. Step 5: Solve for x
   x = 392,438,018.88/22,548
6. Step 6: Final answer
   x = 17,404.56