Finding the Fourth Proportional to 7,249.10, 10,003.77 and 4,105.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,249.10 : 10,003.77 = 4,105.28 : x
2. Step 2: Convert to fraction form
   7,249.10/10,003.77 = 4,105.28/x
3. Step 3: Cross multiply
   7,249.10x = 10,003.77 × 4,105.28
4. Step 4: Simplify right side
   7,249.10x = 41,068,301.92
5. Step 5: Solve for x
   x = 41,068,301.92/7,249.10
6. Step 6: Final answer
   x = 5,665.30