Finding the Fourth Proportional to 10,776.96, 16,149.76 and 4,919.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,776.96 : 16,149.76 = 4,919.04 : x
2. Step 2: Convert to fraction form
   10,776.96/16,149.76 = 4,919.04/x
3. Step 3: Cross multiply
   10,776.96x = 16,149.76 × 4,919.04
4. Step 4: Simplify right side
   10,776.96x = 79,441,315.43
5. Step 5: Solve for x
   x = 79,441,315.43/10,776.96
6. Step 6: Final answer
   x = 7,371.40