Finding the Fourth Proportional to 10,908.12, 16,361.83 and 3,116.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,908.12 : 16,361.83 = 3,116.93 : x
2. Step 2: Convert to fraction form
   10,908.12/16,361.83 = 3,116.93/x
3. Step 3: Cross multiply
   10,908.12x = 16,361.83 × 3,116.93
4. Step 4: Simplify right side
   10,908.12x = 50,998,589.18
5. Step 5: Solve for x
   x = 50,998,589.18/10,908.12
6. Step 6: Final answer
   x = 4,675.29