Finding the Fourth Proportional to 22,448.37, 30,978.96 and 12,377.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,448.37 : 30,978.96 = 12,377.19 : x
2. Step 2: Convert to fraction form
   22,448.37/30,978.96 = 12,377.19/x
3. Step 3: Cross multiply
   22,448.37x = 30,978.96 × 12,377.19
4. Step 4: Simplify right side
   22,448.37x = 383,432,473.92
5. Step 5: Solve for x
   x = 383,432,473.92/22,448.37
6. Step 6: Final answer
   x = 17,080.64