Finding the Fourth Proportional to 22,449.05, 30,978.33 and 12,377.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,449.05 : 30,978.33 = 12,377.93 : x
2. Step 2: Convert to fraction form
   22,449.05/30,978.33 = 12,377.93/x
3. Step 3: Cross multiply
   22,449.05x = 30,978.33 × 12,377.93
4. Step 4: Simplify right side
   22,449.05x = 383,447,600.26
5. Step 5: Solve for x
   x = 383,447,600.26/22,449.05
6. Step 6: Final answer
   x = 17,080.79