Finding the Fourth Proportional to 22,654.28, 34,002.18 and 12,136.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,654.28 : 34,002.18 = 12,136.17 : x
2. Step 2: Convert to fraction form
   22,654.28/34,002.18 = 12,136.17/x
3. Step 3: Cross multiply
   22,654.28x = 34,002.18 × 12,136.17
4. Step 4: Simplify right side
   22,654.28x = 412,656,318.85
5. Step 5: Solve for x
   x = 412,656,318.85/22,654.28
6. Step 6: Final answer
   x = 18,215.38