Finding the Fourth Proportional to 6,986.52, 10,472.76 and 3,867.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,986.52 : 10,472.76 = 3,867.89 : x
2. Step 2: Convert to fraction form
   6,986.52/10,472.76 = 3,867.89/x
3. Step 3: Cross multiply
   6,986.52x = 10,472.76 × 3,867.89
4. Step 4: Simplify right side
   6,986.52x = 40,507,431.31
5. Step 5: Solve for x
   x = 40,507,431.31/6,986.52
6. Step 6: Final answer
   x = 5,797.94