Finding the Fourth Proportional to 5,439.96, 7,513.34 and 3,850.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,439.96 : 7,513.34 = 3,850.61 : x
2. Step 2: Convert to fraction form
   5,439.96/7,513.34 = 3,850.61/x
3. Step 3: Cross multiply
   5,439.96x = 7,513.34 × 3,850.61
4. Step 4: Simplify right side
   5,439.96x = 28,930,885.32
5. Step 5: Solve for x
   x = 28,930,885.32/5,439.96
6. Step 6: Final answer
   x = 5,318.22