Finding the Fourth Proportional to 5,238.72, 7,229.42 and 3,000.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,238.72 : 7,229.42 = 3,000.56 : x
2. Step 2: Convert to fraction form
   5,238.72/7,229.42 = 3,000.56/x
3. Step 3: Cross multiply
   5,238.72x = 7,229.42 × 3,000.56
4. Step 4: Simplify right side
   5,238.72x = 21,692,308.48
5. Step 5: Solve for x
   x = 21,692,308.48/5,238.72
6. Step 6: Final answer
   x = 4,140.77