Finding the Fourth Proportional to 5,238.55, 7,844.45 and 5,082.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,238.55 : 7,844.45 = 5,082.72 : x
2. Step 2: Convert to fraction form
   5,238.55/7,844.45 = 5,082.72/x
3. Step 3: Cross multiply
   5,238.55x = 7,844.45 × 5,082.72
4. Step 4: Simplify right side
   5,238.55x = 39,871,078.27
5. Step 5: Solve for x
   x = 39,871,078.27/5,238.55
6. Step 6: Final answer
   x = 7,611.09