Finding the Fourth Proportional to 6,867.91, 9,477.69 and 3,724.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,867.91 : 9,477.69 = 3,724.09 : x
2. Step 2: Convert to fraction form
   6,867.91/9,477.69 = 3,724.09/x
3. Step 3: Cross multiply
   6,867.91x = 9,477.69 × 3,724.09
4. Step 4: Simplify right side
   6,867.91x = 35,295,770.55
5. Step 5: Solve for x
   x = 35,295,770.55/6,867.91
6. Step 6: Final answer
   x = 5,139.23