Finding the Fourth Proportional to 22,371.30, 30,872.85 and 12,300.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,371.30 : 30,872.85 = 12,300.17 : x
2. Step 2: Convert to fraction form
   22,371.30/30,872.85 = 12,300.17/x
3. Step 3: Cross multiply
   22,371.30x = 30,872.85 × 12,300.17
4. Step 4: Simplify right side
   22,371.30x = 379,741,149.02
5. Step 5: Solve for x
   x = 379,741,149.02/22,371.30
6. Step 6: Final answer
   x = 16,974.48