Finding the Fourth Proportional to 22,447.54, 30,978.99 and 12,375.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,447.54 : 30,978.99 = 12,375.96 : x
2. Step 2: Convert to fraction form
   22,447.54/30,978.99 = 12,375.96/x
3. Step 3: Cross multiply
   22,447.54x = 30,978.99 × 12,375.96
4. Step 4: Simplify right side
   22,447.54x = 383,394,624.91
5. Step 5: Solve for x
   x = 383,394,624.91/22,447.54
6. Step 6: Final answer
   x = 17,079.59