Finding the Fourth Proportional to 9,021.09, 12,449.33 and 5,042.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.09 : 12,449.33 = 5,042.87 : x
2. Step 2: Convert to fraction form
   9,021.09/12,449.33 = 5,042.87/x
3. Step 3: Cross multiply
   9,021.09x = 12,449.33 × 5,042.87
4. Step 4: Simplify right side
   9,021.09x = 62,780,359.28
5. Step 5: Solve for x
   x = 62,780,359.28/9,021.09
6. Step 6: Final answer
   x = 6,959.28