Finding the Fourth Proportional to 4,724.37, 6,521.49 and 3,151.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,724.37 : 6,521.49 = 3,151.89 : x
2. Step 2: Convert to fraction form
   4,724.37/6,521.49 = 3,151.89/x
3. Step 3: Cross multiply
   4,724.37x = 6,521.49 × 3,151.89
4. Step 4: Simplify right side
   4,724.37x = 20,555,019.12
5. Step 5: Solve for x
   x = 20,555,019.12/4,724.37
6. Step 6: Final answer
   x = 4,350.85