Finding the Fourth Proportional to 6,773.36, 9,348.32 and 3,978.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,773.36 : 9,348.32 = 3,978.84 : x
2. Step 2: Convert to fraction form
   6,773.36/9,348.32 = 3,978.84/x
3. Step 3: Cross multiply
   6,773.36x = 9,348.32 × 3,978.84
4. Step 4: Simplify right side
   6,773.36x = 37,195,469.55
5. Step 5: Solve for x
   x = 37,195,469.55/6,773.36
6. Step 6: Final answer
   x = 5,491.44