Finding the Fourth Proportional to 8,105.29, 12,159.46 and 5,583.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.29 : 12,159.46 = 5,583.03 : x
2. Step 2: Convert to fraction form
   8,105.29/12,159.46 = 5,583.03/x
3. Step 3: Cross multiply
   8,105.29x = 12,159.46 × 5,583.03
4. Step 4: Simplify right side
   8,105.29x = 67,886,629.96
5. Step 5: Solve for x
   x = 67,886,629.96/8,105.29
6. Step 6: Final answer
   x = 8,375.60