Finding the Fourth Proportional to 22,448.72, 30,979.18 and 12,377.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,448.72 : 30,979.18 = 12,377.08 : x
2. Step 2: Convert to fraction form
   22,448.72/30,979.18 = 12,377.08/x
3. Step 3: Cross multiply
   22,448.72x = 30,979.18 × 12,377.08
4. Step 4: Simplify right side
   22,448.72x = 383,431,789.19
5. Step 5: Solve for x
   x = 383,431,789.19/22,448.72
6. Step 6: Final answer
   x = 17,080.34