Finding the Fourth Proportional to 5,729.73, 8,578.18 and 3,523.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,729.73 : 8,578.18 = 3,523.59 : x
2. Step 2: Convert to fraction form
   5,729.73/8,578.18 = 3,523.59/x
3. Step 3: Cross multiply
   5,729.73x = 8,578.18 × 3,523.59
4. Step 4: Simplify right side
   5,729.73x = 30,225,989.27
5. Step 5: Solve for x
   x = 30,225,989.27/5,729.73
6. Step 6: Final answer
   x = 5,275.29