Finding the Fourth Proportional to 10,992.43, 16,456.51 and 6,819.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.43 : 16,456.51 = 6,819.85 : x
2. Step 2: Convert to fraction form
   10,992.43/16,456.51 = 6,819.85/x
3. Step 3: Cross multiply
   10,992.43x = 16,456.51 × 6,819.85
4. Step 4: Simplify right side
   10,992.43x = 112,230,929.72
5. Step 5: Solve for x
   x = 112,230,929.72/10,992.43
6. Step 6: Final answer
   x = 10,209.84