Finding the Fourth Proportional to 16,206.72, 22,383.90 and 10,819.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,206.72 : 22,383.90 = 10,819.78 : x
2. Step 2: Convert to fraction form
   16,206.72/22,383.90 = 10,819.78/x
3. Step 3: Cross multiply
   16,206.72x = 22,383.90 × 10,819.78
4. Step 4: Simplify right side
   16,206.72x = 242,188,873.54
5. Step 5: Solve for x
   x = 242,188,873.54/16,206.72
6. Step 6: Final answer
   x = 14,943.73