Finding the Fourth Proportional to 6,078.72, 8,388.52 and 3,426.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,078.72 : 8,388.52 = 3,426.08 : x
2. Step 2: Convert to fraction form
   6,078.72/8,388.52 = 3,426.08/x
3. Step 3: Cross multiply
   6,078.72x = 8,388.52 × 3,426.08
4. Step 4: Simplify right side
   6,078.72x = 28,739,690.09
5. Step 5: Solve for x
   x = 28,739,690.09/6,078.72
6. Step 6: Final answer
   x = 4,727.92