Finding the Fourth Proportional to 8,562.68, 12,840.90 and 3,632.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,562.68 : 12,840.90 = 3,632.72 : x
2. Step 2: Convert to fraction form
   8,562.68/12,840.90 = 3,632.72/x
3. Step 3: Cross multiply
   8,562.68x = 12,840.90 × 3,632.72
4. Step 4: Simplify right side
   8,562.68x = 46,647,394.25
5. Step 5: Solve for x
   x = 46,647,394.25/8,562.68
6. Step 6: Final answer
   x = 5,447.76