Finding the Fourth Proportional to 7,171.03, 9,896.72 and 4,146.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,171.03 : 9,896.72 = 4,146.28 : x
2. Step 2: Convert to fraction form
   7,171.03/9,896.72 = 4,146.28/x
3. Step 3: Cross multiply
   7,171.03x = 9,896.72 × 4,146.28
4. Step 4: Simplify right side
   7,171.03x = 41,034,550.05
5. Step 5: Solve for x
   x = 41,034,550.05/7,171.03
6. Step 6: Final answer
   x = 5,722.27