Finding the Fourth Proportional to 22,632.06, 31,229.69 and 12,557.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,632.06 : 31,229.69 = 12,557.88 : x
2. Step 2: Convert to fraction form
   22,632.06/31,229.69 = 12,557.88/x
3. Step 3: Cross multiply
   22,632.06x = 31,229.69 × 12,557.88
4. Step 4: Simplify right side
   22,632.06x = 392,178,636.67
5. Step 5: Solve for x
   x = 392,178,636.67/22,632.06
6. Step 6: Final answer
   x = 17,328.46