Finding the Fourth Proportional to 3,672.91, 5,078.59 and 3,613.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.91 : 5,078.59 = 3,613.56 : x
2. Step 2: Convert to fraction form
   3,672.91/5,078.59 = 3,613.56/x
3. Step 3: Cross multiply
   3,672.91x = 5,078.59 × 3,613.56
4. Step 4: Simplify right side
   3,672.91x = 18,351,789.68
5. Step 5: Solve for x
   x = 18,351,789.68/3,672.91
6. Step 6: Final answer
   x = 4,996.53