Finding the Fourth Proportional to 10,992.76, 16,487.10 and 3,199.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.76 : 16,487.10 = 3,199.72 : x
2. Step 2: Convert to fraction form
   10,992.76/16,487.10 = 3,199.72/x
3. Step 3: Cross multiply
   10,992.76x = 16,487.10 × 3,199.72
4. Step 4: Simplify right side
   10,992.76x = 52,754,103.61
5. Step 5: Solve for x
   x = 52,754,103.61/10,992.76
6. Step 6: Final answer
   x = 4,798.99