Finding the Fourth Proportional to 16,786.81, 23,166.41 and 9,233.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,786.81 : 23,166.41 = 9,233.72 : x
2. Step 2: Convert to fraction form
   16,786.81/23,166.41 = 9,233.72/x
3. Step 3: Cross multiply
   16,786.81x = 23,166.41 × 9,233.72
4. Step 4: Simplify right side
   16,786.81x = 213,912,143.35
5. Step 5: Solve for x
   x = 213,912,143.35/16,786.81
6. Step 6: Final answer
   x = 12,742.87