Finding the Fourth Proportional to 22,641.50, 31,248.99 and 12,573.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,641.50 : 31,248.99 = 12,573.20 : x
2. Step 2: Convert to fraction form
   22,641.50/31,248.99 = 12,573.20/x
3. Step 3: Cross multiply
   22,641.50x = 31,248.99 × 12,573.20
4. Step 4: Simplify right side
   22,641.50x = 392,899,644.82
5. Step 5: Solve for x
   x = 392,899,644.82/22,641.50
6. Step 6: Final answer
   x = 17,353.08