Finding the Fourth Proportional to 11,306.82, 16,957.38 and 5,380.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,306.82 : 16,957.38 = 5,380.05 : x
2. Step 2: Convert to fraction form
   11,306.82/16,957.38 = 5,380.05/x
3. Step 3: Cross multiply
   11,306.82x = 16,957.38 × 5,380.05
4. Step 4: Simplify right side
   11,306.82x = 91,231,552.27
5. Step 5: Solve for x
   x = 91,231,552.27/11,306.82
6. Step 6: Final answer
   x = 8,068.72