Finding the Fourth Proportional to 22,448.62, 30,979.31 and 12,377.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,448.62 : 30,979.31 = 12,377.42 : x
2. Step 2: Convert to fraction form
   22,448.62/30,979.31 = 12,377.42/x
3. Step 3: Cross multiply
   22,448.62x = 30,979.31 × 12,377.42
4. Step 4: Simplify right side
   22,448.62x = 383,443,931.18
5. Step 5: Solve for x
   x = 383,443,931.18/22,448.62
6. Step 6: Final answer
   x = 17,080.96