Finding the Fourth Proportional to 22,633, 31,233.06 and 12,561.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,633 : 31,233.06 = 12,561.40 : x
2. Step 2: Convert to fraction form
   22,633/31,233.06 = 12,561.40/x
3. Step 3: Cross multiply
   22,633x = 31,233.06 × 12,561.40
4. Step 4: Simplify right side
   22,633x = 392,330,959.88
5. Step 5: Solve for x
   x = 392,330,959.88/22,633
6. Step 6: Final answer
   x = 17,334.47