Finding the Fourth Proportional to 6,947.31, 9,587.33 and 3,963.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,947.31 : 9,587.33 = 3,963.12 : x
2. Step 2: Convert to fraction form
   6,947.31/9,587.33 = 3,963.12/x
3. Step 3: Cross multiply
   6,947.31x = 9,587.33 × 3,963.12
4. Step 4: Simplify right side
   6,947.31x = 37,995,739.27
5. Step 5: Solve for x
   x = 37,995,739.27/6,947.31
6. Step 6: Final answer
   x = 5,469.13