Finding the Fourth Proportional to 22,612, 31,204.56 and 12,676

Step by Step Solution

1. Step 1: Write the proportion equation
   22,612 : 31,204.56 = 12,676 : x
2. Step 2: Convert to fraction form
   22,612/31,204.56 = 12,676/x
3. Step 3: Cross multiply
   22,612x = 31,204.56 × 12,676
4. Step 4: Simplify right side
   22,612x = 395,549,002.56
5. Step 5: Solve for x
   x = 395,549,002.56/22,612
6. Step 6: Final answer
   x = 17,492.88