Finding the Fourth Proportional to 16,819.72, 23,210.10 and 9,744.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,819.72 : 23,210.10 = 9,744.88 : x
2. Step 2: Convert to fraction form
   16,819.72/23,210.10 = 9,744.88/x
3. Step 3: Cross multiply
   16,819.72x = 23,210.10 × 9,744.88
4. Step 4: Simplify right side
   16,819.72x = 226,179,639.29
5. Step 5: Solve for x
   x = 226,179,639.29/16,819.72
6. Step 6: Final answer
   x = 13,447.29