Finding the Fourth Proportional to 22,683.88, 31,304.79 and 12,613.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,683.88 : 31,304.79 = 12,613.34 : x
2. Step 2: Convert to fraction form
   22,683.88/31,304.79 = 12,613.34/x
3. Step 3: Cross multiply
   22,683.88x = 31,304.79 × 12,613.34
4. Step 4: Simplify right side
   22,683.88x = 394,857,959.90
5. Step 5: Solve for x
   x = 394,857,959.90/22,683.88
6. Step 6: Final answer
   x = 17,406.99