Finding the Fourth Proportional to 22,449.56, 30,978.03 and 12,377.41

Step by Step Solution

1. Step 1: Write the proportion equation
   22,449.56 : 30,978.03 = 12,377.41 : x
2. Step 2: Convert to fraction form
   22,449.56/30,978.03 = 12,377.41/x
3. Step 3: Cross multiply
   22,449.56x = 30,978.03 × 12,377.41
4. Step 4: Simplify right side
   22,449.56x = 383,427,677.65
5. Step 5: Solve for x
   x = 383,427,677.65/22,449.56
6. Step 6: Final answer
   x = 17,079.52