Finding the Fourth Proportional to 22,512.27, 31,066.49 and 12,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,512.27 : 31,066.49 = 12,440.50 : x
2. Step 2: Convert to fraction form
   22,512.27/31,066.49 = 12,440.50/x
3. Step 3: Cross multiply
   22,512.27x = 31,066.49 × 12,440.50
4. Step 4: Simplify right side
   22,512.27x = 386,482,622.28
5. Step 5: Solve for x
   x = 386,482,622.28/22,512.27
6. Step 6: Final answer
   x = 17,167.64