Finding the Fourth Proportional to 6,853.10, 9,457.25 and 3,709.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,853.10 : 9,457.25 = 3,709.29 : x
2. Step 2: Convert to fraction form
   6,853.10/9,457.25 = 3,709.29/x
3. Step 3: Cross multiply
   6,853.10x = 9,457.25 × 3,709.29
4. Step 4: Simplify right side
   6,853.10x = 35,079,664.31
5. Step 5: Solve for x
   x = 35,079,664.31/6,853.10
6. Step 6: Final answer
   x = 5,118.81