Finding the Fourth Proportional to 4,021.89, 6,019.34 and 3,868.53

Step by Step Solution

1. Step 1: Write the proportion equation
   4,021.89 : 6,019.34 = 3,868.53 : x
2. Step 2: Convert to fraction form
   4,021.89/6,019.34 = 3,868.53/x
3. Step 3: Cross multiply
   4,021.89x = 6,019.34 × 3,868.53
4. Step 4: Simplify right side
   4,021.89x = 23,285,978.03
5. Step 5: Solve for x
   x = 23,285,978.03/4,021.89
6. Step 6: Final answer
   x = 5,789.81