Finding the Fourth Proportional to 8,939.01, 12,339.90 and 5,753.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,939.01 : 12,339.90 = 5,753.82 : x
2. Step 2: Convert to fraction form
   8,939.01/12,339.90 = 5,753.82/x
3. Step 3: Cross multiply
   8,939.01x = 12,339.90 × 5,753.82
4. Step 4: Simplify right side
   8,939.01x = 71,001,563.42
5. Step 5: Solve for x
   x = 71,001,563.42/8,939.01
6. Step 6: Final answer
   x = 7,942.89