Finding the Fourth Proportional to 22,469.46, 31,007.34 and 12,398.85

Step by Step Solution

1. Step 1: Write the proportion equation
   22,469.46 : 31,007.34 = 12,398.85 : x
2. Step 2: Convert to fraction form
   22,469.46/31,007.34 = 12,398.85/x
3. Step 3: Cross multiply
   22,469.46x = 31,007.34 × 12,398.85
4. Step 4: Simplify right side
   22,469.46x = 384,455,357.56
5. Step 5: Solve for x
   x = 384,455,357.56/22,469.46
6. Step 6: Final answer
   x = 17,110.13