Finding the Fourth Proportional to 6,223.78, 8,588.37 and 3,571.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,223.78 : 8,588.37 = 3,571.12 : x
2. Step 2: Convert to fraction form
   6,223.78/8,588.37 = 3,571.12/x
3. Step 3: Cross multiply
   6,223.78x = 8,588.37 × 3,571.12
4. Step 4: Simplify right side
   6,223.78x = 30,670,099.87
5. Step 5: Solve for x
   x = 30,670,099.87/6,223.78
6. Step 6: Final answer
   x = 4,927.89