Finding the Fourth Proportional to 22,454.78, 30,987.04 and 12,382.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,454.78 : 30,987.04 = 12,382.91 : x
2. Step 2: Convert to fraction form
   22,454.78/30,987.04 = 12,382.91/x
3. Step 3: Cross multiply
   22,454.78x = 30,987.04 × 12,382.91
4. Step 4: Simplify right side
   22,454.78x = 383,709,510.64
5. Step 5: Solve for x
   x = 383,709,510.64/22,454.78
6. Step 6: Final answer
   x = 17,088.10