Finding the Fourth Proportional to 6,078.78, 8,388.22 and 3,426.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,078.78 : 8,388.22 = 3,426.84 : x
2. Step 2: Convert to fraction form
   6,078.78/8,388.22 = 3,426.84/x
3. Step 3: Cross multiply
   6,078.78x = 8,388.22 × 3,426.84
4. Step 4: Simplify right side
   6,078.78x = 28,745,110.71
5. Step 5: Solve for x
   x = 28,745,110.71/6,078.78
6. Step 6: Final answer
   x = 4,728.76