Finding the Fourth Proportional to 4,078.30, 5,717.30 and 4,078.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,078.30 : 5,717.30 = 4,078.30 : x
2. Step 2: Convert to fraction form
   4,078.30/5,717.30 = 4,078.30/x
3. Step 3: Cross multiply
   4,078.30x = 5,717.30 × 4,078.30
4. Step 4: Simplify right side
   4,078.30x = 23,316,864.59
5. Step 5: Solve for x
   x = 23,316,864.59/4,078.30
6. Step 6: Final answer
   x = 5,717.30