Finding the Fourth Proportional to 4,118.37, 5,665.71 and 3,721.06

Step by Step Solution

1. Step 1: Write the proportion equation
   4,118.37 : 5,665.71 = 3,721.06 : x
2. Step 2: Convert to fraction form
   4,118.37/5,665.71 = 3,721.06/x
3. Step 3: Cross multiply
   4,118.37x = 5,665.71 × 3,721.06
4. Step 4: Simplify right side
   4,118.37x = 21,082,446.85
5. Step 5: Solve for x
   x = 21,082,446.85/4,118.37
6. Step 6: Final answer
   x = 5,119.12