Finding the Fourth Proportional to 22,449.45, 30,978.86 and 12,377.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,449.45 : 30,978.86 = 12,377.37 : x
2. Step 2: Convert to fraction form
   22,449.45/30,978.86 = 12,377.37/x
3. Step 3: Cross multiply
   22,449.45x = 30,978.86 × 12,377.37
4. Step 4: Simplify right side
   22,449.45x = 383,436,750.51
5. Step 5: Solve for x
   x = 383,436,750.51/22,449.45
6. Step 6: Final answer
   x = 17,080.01