Finding the Fourth Proportional to 16,857.96, 23,269.40 and 9,783

Step by Step Solution

1. Step 1: Write the proportion equation
   16,857.96 : 23,269.40 = 9,783 : x
2. Step 2: Convert to fraction form
   16,857.96/23,269.40 = 9,783/x
3. Step 3: Cross multiply
   16,857.96x = 23,269.40 × 9,783
4. Step 4: Simplify right side
   16,857.96x = 227,644,540.20
5. Step 5: Solve for x
   x = 227,644,540.20/16,857.96
6. Step 6: Final answer
   x = 13,503.68