Finding the Fourth Proportional to 5,249.37, 7,238.05 and 4,186.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,249.37 : 7,238.05 = 4,186.30 : x
2. Step 2: Convert to fraction form
   5,249.37/7,238.05 = 4,186.30/x
3. Step 3: Cross multiply
   5,249.37x = 7,238.05 × 4,186.30
4. Step 4: Simplify right side
   5,249.37x = 30,300,648.72
5. Step 5: Solve for x
   x = 30,300,648.72/5,249.37
6. Step 6: Final answer
   x = 5,772.24