Finding the Fourth Proportional to 5,706.78, 7,860.71 and 4,025.23

Step by Step Solution

1. Step 1: Write the proportion equation
   5,706.78 : 7,860.71 = 4,025.23 : x
2. Step 2: Convert to fraction form
   5,706.78/7,860.71 = 4,025.23/x
3. Step 3: Cross multiply
   5,706.78x = 7,860.71 × 4,025.23
4. Step 4: Simplify right side
   5,706.78x = 31,641,172.31
5. Step 5: Solve for x
   x = 31,641,172.31/5,706.78
6. Step 6: Final answer
   x = 5,544.49