Finding the Fourth Proportional to 12,672.15, 17,489.94 and 7,367.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672.15 : 17,489.94 = 7,367.73 : x
2. Step 2: Convert to fraction form
   12,672.15/17,489.94 = 7,367.73/x
3. Step 3: Cross multiply
   12,672.15x = 17,489.94 × 7,367.73
4. Step 4: Simplify right side
   12,672.15x = 128,861,155.64
5. Step 5: Solve for x
   x = 128,861,155.64/12,672.15
6. Step 6: Final answer
   x = 10,168.85