Finding the Fourth Proportional to 7,144.02, 9,857.85 and 4,311.54

Step by Step Solution

1. Step 1: Write the proportion equation
   7,144.02 : 9,857.85 = 4,311.54 : x
2. Step 2: Convert to fraction form
   7,144.02/9,857.85 = 4,311.54/x
3. Step 3: Cross multiply
   7,144.02x = 9,857.85 × 4,311.54
4. Step 4: Simplify right side
   7,144.02x = 42,502,514.59
5. Step 5: Solve for x
   x = 42,502,514.59/7,144.02
6. Step 6: Final answer
   x = 5,949.38