Finding the Fourth Proportional to 3,993.27, 5,515.72 and 3,365.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.27 : 5,515.72 = 3,365.88 : x
2. Step 2: Convert to fraction form
   3,993.27/5,515.72 = 3,365.88/x
3. Step 3: Cross multiply
   3,993.27x = 5,515.72 × 3,365.88
4. Step 4: Simplify right side
   3,993.27x = 18,565,251.63
5. Step 5: Solve for x
   x = 18,565,251.63/3,993.27
6. Step 6: Final answer
   x = 4,649.14