Finding the Fourth Proportional to 6,854.86, 9,459.70 and 3,711.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,854.86 : 9,459.70 = 3,711.05 : x
2. Step 2: Convert to fraction form
   6,854.86/9,459.70 = 3,711.05/x
3. Step 3: Cross multiply
   6,854.86x = 9,459.70 × 3,711.05
4. Step 4: Simplify right side
   6,854.86x = 35,105,419.69
5. Step 5: Solve for x
   x = 35,105,419.69/6,854.86
6. Step 6: Final answer
   x = 5,121.25