Finding the Fourth Proportional to 16,871.94, 23,282.82 and 9,318.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,871.94 : 23,282.82 = 9,318.06 : x
2. Step 2: Convert to fraction form
   16,871.94/23,282.82 = 9,318.06/x
3. Step 3: Cross multiply
   16,871.94x = 23,282.82 × 9,318.06
4. Step 4: Simplify right side
   16,871.94x = 216,950,713.73
5. Step 5: Solve for x
   x = 216,950,713.73/16,871.94
6. Step 6: Final answer
   x = 12,858.67