Finding the Fourth Proportional to 10,881.48, 15,020.82 and 8,229.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,881.48 : 15,020.82 = 8,229.48 : x
2. Step 2: Convert to fraction form
   10,881.48/15,020.82 = 8,229.48/x
3. Step 3: Cross multiply
   10,881.48x = 15,020.82 × 8,229.48
4. Step 4: Simplify right side
   10,881.48x = 123,613,537.77
5. Step 5: Solve for x
   x = 123,613,537.77/10,881.48
6. Step 6: Final answer
   x = 11,359.99