Finding the Fourth Proportional to 6,854.89, 9,459.69 and 3,711.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,854.89 : 9,459.69 = 3,711.05 : x
2. Step 2: Convert to fraction form
   6,854.89/9,459.69 = 3,711.05/x
3. Step 3: Cross multiply
   6,854.89x = 9,459.69 × 3,711.05
4. Step 4: Simplify right side
   6,854.89x = 35,105,382.57
5. Step 5: Solve for x
   x = 35,105,382.57/6,854.89
6. Step 6: Final answer
   x = 5,121.22