Finding the Fourth Proportional to 12,581.73, 17,362.35 and 8,105.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,581.73 : 17,362.35 = 8,105.67 : x
2. Step 2: Convert to fraction form
   12,581.73/17,362.35 = 8,105.67/x
3. Step 3: Cross multiply
   12,581.73x = 17,362.35 × 8,105.67
4. Step 4: Simplify right side
   12,581.73x = 140,733,479.52
5. Step 5: Solve for x
   x = 140,733,479.52/12,581.73
6. Step 6: Final answer
   x = 11,185.54