Finding the Fourth Proportional to 6,789.18, 9,368.94 and 3,805.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,789.18 : 9,368.94 = 3,805.05 : x
2. Step 2: Convert to fraction form
   6,789.18/9,368.94 = 3,805.05/x
3. Step 3: Cross multiply
   6,789.18x = 9,368.94 × 3,805.05
4. Step 4: Simplify right side
   6,789.18x = 35,649,285.15
5. Step 5: Solve for x
   x = 35,649,285.15/6,789.18
6. Step 6: Final answer
   x = 5,250.90