Finding the Fourth Proportional to 5,250.27, 7,245.33 and 3,911.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,250.27 : 7,245.33 = 3,911.88 : x
2. Step 2: Convert to fraction form
   5,250.27/7,245.33 = 3,911.88/x
3. Step 3: Cross multiply
   5,250.27x = 7,245.33 × 3,911.88
4. Step 4: Simplify right side
   5,250.27x = 28,342,861.52
5. Step 5: Solve for x
   x = 28,342,861.52/5,250.27
6. Step 6: Final answer
   x = 5,398.36