Finding the Fourth Proportional to 7,083.86, 9,775.89 and 3,940.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,083.86 : 9,775.89 = 3,940.25 : x
2. Step 2: Convert to fraction form
   7,083.86/9,775.89 = 3,940.25/x
3. Step 3: Cross multiply
   7,083.86x = 9,775.89 × 3,940.25
4. Step 4: Simplify right side
   7,083.86x = 38,519,401.69
5. Step 5: Solve for x
   x = 38,519,401.69/7,083.86
6. Step 6: Final answer
   x = 5,437.63