Finding the Fourth Proportional to 6,697.91, 9,243.01 and 3,865.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,697.91 : 9,243.01 = 3,865.31 : x
2. Step 2: Convert to fraction form
   6,697.91/9,243.01 = 3,865.31/x
3. Step 3: Cross multiply
   6,697.91x = 9,243.01 × 3,865.31
4. Step 4: Simplify right side
   6,697.91x = 35,727,098.98
5. Step 5: Solve for x
   x = 35,727,098.98/6,697.91
6. Step 6: Final answer
   x = 5,334.07