Finding the Fourth Proportional to 5,872.81, 8,806.42 and 3,408.39

Step by Step Solution

1. Step 1: Write the proportion equation
   5,872.81 : 8,806.42 = 3,408.39 : x
2. Step 2: Convert to fraction form
   5,872.81/8,806.42 = 3,408.39/x
3. Step 3: Cross multiply
   5,872.81x = 8,806.42 × 3,408.39
4. Step 4: Simplify right side
   5,872.81x = 30,015,713.86
5. Step 5: Solve for x
   x = 30,015,713.86/5,872.81
6. Step 6: Final answer
   x = 5,110.96