Finding the Fourth Proportional to 6,076.80, 8,382.72 and 4,087.68

Step by Step Solution

1. Step 1: Write the proportion equation
   6,076.80 : 8,382.72 = 4,087.68 : x
2. Step 2: Convert to fraction form
   6,076.80/8,382.72 = 4,087.68/x
3. Step 3: Cross multiply
   6,076.80x = 8,382.72 × 4,087.68
4. Step 4: Simplify right side
   6,076.80x = 34,265,876.89
5. Step 5: Solve for x
   x = 34,265,876.89/6,076.80
6. Step 6: Final answer
   x = 5,638.80