Finding the Fourth Proportional to 5,636.39, 8,436.83 and 3,871.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,636.39 : 8,436.83 = 3,871.04 : x
2. Step 2: Convert to fraction form
   5,636.39/8,436.83 = 3,871.04/x
3. Step 3: Cross multiply
   5,636.39x = 8,436.83 × 3,871.04
4. Step 4: Simplify right side
   5,636.39x = 32,659,244.86
5. Step 5: Solve for x
   x = 32,659,244.86/5,636.39
6. Step 6: Final answer
   x = 5,794.36