Finding the Fourth Proportional to 6,965.31, 9,610.46 and 3,940.49

Step by Step Solution

1. Step 1: Write the proportion equation
   6,965.31 : 9,610.46 = 3,940.49 : x
2. Step 2: Convert to fraction form
   6,965.31/9,610.46 = 3,940.49/x
3. Step 3: Cross multiply
   6,965.31x = 9,610.46 × 3,940.49
4. Step 4: Simplify right side
   6,965.31x = 37,869,853.77
5. Step 5: Solve for x
   x = 37,869,853.77/6,965.31
6. Step 6: Final answer
   x = 5,436.93