Finding the Fourth Proportional to 4,076.80, 5,724.80 and 4,076.80

Step by Step Solution

1. Step 1: Write the proportion equation
   4,076.80 : 5,724.80 = 4,076.80 : x
2. Step 2: Convert to fraction form
   4,076.80/5,724.80 = 4,076.80/x
3. Step 3: Cross multiply
   4,076.80x = 5,724.80 × 4,076.80
4. Step 4: Simplify right side
   4,076.80x = 23,338,864.64
5. Step 5: Solve for x
   x = 23,338,864.64/4,076.80
6. Step 6: Final answer
   x = 5,724.80