Finding the Fourth Proportional to 12,291.75, 18,404.03 and 8,597.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,291.75 : 18,404.03 = 8,597.67 : x
2. Step 2: Convert to fraction form
   12,291.75/18,404.03 = 8,597.67/x
3. Step 3: Cross multiply
   12,291.75x = 18,404.03 × 8,597.67
4. Step 4: Simplify right side
   12,291.75x = 158,231,733.62
5. Step 5: Solve for x
   x = 158,231,733.62/12,291.75
6. Step 6: Final answer
   x = 12,873.00