Finding the Fourth Proportional to 7,083.38, 9,775.06 and 3,939.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,083.38 : 9,775.06 = 3,939.50 : x
2. Step 2: Convert to fraction form
   7,083.38/9,775.06 = 3,939.50/x
3. Step 3: Cross multiply
   7,083.38x = 9,775.06 × 3,939.50
4. Step 4: Simplify right side
   7,083.38x = 38,508,790.15
5. Step 5: Solve for x
   x = 38,508,790.15/7,083.38
6. Step 6: Final answer
   x = 5,436.50