Finding the Fourth Proportional to 6,796.78, 9,379.60 and 3,966.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,796.78 : 9,379.60 = 3,966.12 : x
2. Step 2: Convert to fraction form
   6,796.78/9,379.60 = 3,966.12/x
3. Step 3: Cross multiply
   6,796.78x = 9,379.60 × 3,966.12
4. Step 4: Simplify right side
   6,796.78x = 37,200,619.15
5. Step 5: Solve for x
   x = 37,200,619.15/6,796.78
6. Step 6: Final answer
   x = 5,473.27