Finding the Fourth Proportional to 8,273.12, 12,402.69 and 3,589.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,273.12 : 12,402.69 = 3,589.60 : x
2. Step 2: Convert to fraction form
   8,273.12/12,402.69 = 3,589.60/x
3. Step 3: Cross multiply
   8,273.12x = 12,402.69 × 3,589.60
4. Step 4: Simplify right side
   8,273.12x = 44,520,665.02
5. Step 5: Solve for x
   x = 44,520,665.02/8,273.12
6. Step 6: Final answer
   x = 5,381.37