Finding the Fourth Proportional to 22,145.72, 33,212.10 and 8,291.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,145.72 : 33,212.10 = 8,291.48 : x
2. Step 2: Convert to fraction form
   22,145.72/33,212.10 = 8,291.48/x
3. Step 3: Cross multiply
   22,145.72x = 33,212.10 × 8,291.48
4. Step 4: Simplify right side
   22,145.72x = 275,377,462.91
5. Step 5: Solve for x
   x = 275,377,462.91/22,145.72
6. Step 6: Final answer
   x = 12,434.79