Finding the Fourth Proportional to 16,685.29, 23,018.37 and 9,967.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,685.29 : 23,018.37 = 9,967.56 : x
2. Step 2: Convert to fraction form
   16,685.29/23,018.37 = 9,967.56/x
3. Step 3: Cross multiply
   16,685.29x = 23,018.37 × 9,967.56
4. Step 4: Simplify right side
   16,685.29x = 229,436,984.08
5. Step 5: Solve for x
   x = 229,436,984.08/16,685.29
6. Step 6: Final answer
   x = 13,750.85