Finding the Fourth Proportional to 22,921.44, 31,632.15 and 12,849.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,921.44 : 31,632.15 = 12,849.42 : x
2. Step 2: Convert to fraction form
   22,921.44/31,632.15 = 12,849.42/x
3. Step 3: Cross multiply
   22,921.44x = 31,632.15 × 12,849.42
4. Step 4: Simplify right side
   22,921.44x = 406,454,780.85
5. Step 5: Solve for x
   x = 406,454,780.85/22,921.44
6. Step 6: Final answer
   x = 17,732.52