Finding the Fourth Proportional to 3,613.27, 5,421.01 and 3,240.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.27 : 5,421.01 = 3,240.72 : x
2. Step 2: Convert to fraction form
   3,613.27/5,421.01 = 3,240.72/x
3. Step 3: Cross multiply
   3,613.27x = 5,421.01 × 3,240.72
4. Step 4: Simplify right side
   3,613.27x = 17,567,975.53
5. Step 5: Solve for x
   x = 17,567,975.53/3,613.27
6. Step 6: Final answer
   x = 4,862.07