Finding the Fourth Proportional to 3,919.50, 5,396.92 and 3,606.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,919.50 : 5,396.92 = 3,606.03 : x
2. Step 2: Convert to fraction form
   3,919.50/5,396.92 = 3,606.03/x
3. Step 3: Cross multiply
   3,919.50x = 5,396.92 × 3,606.03
4. Step 4: Simplify right side
   3,919.50x = 19,461,455.43
5. Step 5: Solve for x
   x = 19,461,455.43/3,919.50
6. Step 6: Final answer
   x = 4,965.29