Finding the Fourth Proportional to 22,448.55, 30,979.20 and 12,377.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,448.55 : 30,979.20 = 12,377.34 : x
2. Step 2: Convert to fraction form
   22,448.55/30,979.20 = 12,377.34/x
3. Step 3: Cross multiply
   22,448.55x = 30,979.20 × 12,377.34
4. Step 4: Simplify right side
   22,448.55x = 383,440,091.33
5. Step 5: Solve for x
   x = 383,440,091.33/22,448.55
6. Step 6: Final answer
   x = 17,080.84