Finding the Fourth Proportional to 5,807.61, 8,015.81 and 3,571.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,807.61 : 8,015.81 = 3,571.43 : x
2. Step 2: Convert to fraction form
   5,807.61/8,015.81 = 3,571.43/x
3. Step 3: Cross multiply
   5,807.61x = 8,015.81 × 3,571.43
4. Step 4: Simplify right side
   5,807.61x = 28,627,846.37
5. Step 5: Solve for x
   x = 28,627,846.37/5,807.61
6. Step 6: Final answer
   x = 4,929.37