Finding the Fourth Proportional to 3,697.30, 5,105.91 and 3,163.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,697.30 : 5,105.91 = 3,163.15 : x
2. Step 2: Convert to fraction form
   3,697.30/5,105.91 = 3,163.15/x
3. Step 3: Cross multiply
   3,697.30x = 5,105.91 × 3,163.15
4. Step 4: Simplify right side
   3,697.30x = 16,150,759.22
5. Step 5: Solve for x
   x = 16,150,759.22/3,697.30
6. Step 6: Final answer
   x = 4,368.26