Finding the Fourth Proportional to 3,843.12, 5,723.88 and 3,603.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,843.12 : 5,723.88 = 3,603.36 : x
2. Step 2: Convert to fraction form
   3,843.12/5,723.88 = 3,603.36/x
3. Step 3: Cross multiply
   3,843.12x = 5,723.88 × 3,603.36
4. Step 4: Simplify right side
   3,843.12x = 20,625,200.24
5. Step 5: Solve for x
   x = 20,625,200.24/3,843.12
6. Step 6: Final answer
   x = 5,366.79