Finding the Fourth Proportional to 22,377.25, 30,878.58 and 12,306.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,377.25 : 30,878.58 = 12,306.12 : x
2. Step 2: Convert to fraction form
   22,377.25/30,878.58 = 12,306.12/x
3. Step 3: Cross multiply
   22,377.25x = 30,878.58 × 12,306.12
4. Step 4: Simplify right side
   22,377.25x = 379,995,510.91
5. Step 5: Solve for x
   x = 379,995,510.91/22,377.25
6. Step 6: Final answer
   x = 16,981.33