Finding the Fourth Proportional to 5,728.73, 8,576.69 and 3,522.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,728.73 : 8,576.69 = 3,522.59 : x
2. Step 2: Convert to fraction form
   5,728.73/8,576.69 = 3,522.59/x
3. Step 3: Cross multiply
   5,728.73x = 8,576.69 × 3,522.59
4. Step 4: Simplify right side
   5,728.73x = 30,212,134.09
5. Step 5: Solve for x
   x = 30,212,134.09/5,728.73
6. Step 6: Final answer
   x = 5,273.80