Finding the Fourth Proportional to 4,145.74, 5,745.78 and 4,067.98

Step by Step Solution

1. Step 1: Write the proportion equation
   4,145.74 : 5,745.78 = 4,067.98 : x
2. Step 2: Convert to fraction form
   4,145.74/5,745.78 = 4,067.98/x
3. Step 3: Cross multiply
   4,145.74x = 5,745.78 × 4,067.98
4. Step 4: Simplify right side
   4,145.74x = 23,373,718.12
5. Step 5: Solve for x
   x = 23,373,718.12/4,145.74
6. Step 6: Final answer
   x = 5,638.01