Finding the Fourth Proportional to 16,873.89, 23,286.15 and 9,320.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,873.89 : 23,286.15 = 9,320.43 : x
2. Step 2: Convert to fraction form
   16,873.89/23,286.15 = 9,320.43/x
3. Step 3: Cross multiply
   16,873.89x = 23,286.15 × 9,320.43
4. Step 4: Simplify right side
   16,873.89x = 217,037,018.37
5. Step 5: Solve for x
   x = 217,037,018.37/16,873.89
6. Step 6: Final answer
   x = 12,862.30