Finding the Fourth Proportional to 22,918.43, 34,359.15 and 8,119.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,918.43 : 34,359.15 = 8,119.27 : x
2. Step 2: Convert to fraction form
   22,918.43/34,359.15 = 8,119.27/x
3. Step 3: Cross multiply
   22,918.43x = 34,359.15 × 8,119.27
4. Step 4: Simplify right side
   22,918.43x = 278,971,215.82
5. Step 5: Solve for x
   x = 278,971,215.82/22,918.43
6. Step 6: Final answer
   x = 12,172.35