Finding the Fourth Proportional to 8,078.62, 11,148.56 and 4,934.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,078.62 : 11,148.56 = 4,934.80 : x
2. Step 2: Convert to fraction form
   8,078.62/11,148.56 = 4,934.80/x
3. Step 3: Cross multiply
   8,078.62x = 11,148.56 × 4,934.80
4. Step 4: Simplify right side
   8,078.62x = 55,015,913.89
5. Step 5: Solve for x
   x = 55,015,913.89/8,078.62
6. Step 6: Final answer
   x = 6,810.06