Finding the Fourth Proportional to 6,776.49, 10,168.77 and 3,078.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,776.49 : 10,168.77 = 3,078.69 : x
2. Step 2: Convert to fraction form
   6,776.49/10,168.77 = 3,078.69/x
3. Step 3: Cross multiply
   6,776.49x = 10,168.77 × 3,078.69
4. Step 4: Simplify right side
   6,776.49x = 31,306,490.51
5. Step 5: Solve for x
   x = 31,306,490.51/6,776.49
6. Step 6: Final answer
   x = 4,619.87