Finding the Fourth Proportional to 10,909.14, 16,367.76 and 5,711.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,909.14 : 16,367.76 = 5,711.37 : x
2. Step 2: Convert to fraction form
   10,909.14/16,367.76 = 5,711.37/x
3. Step 3: Cross multiply
   10,909.14x = 16,367.76 × 5,711.37
4. Step 4: Simplify right side
   10,909.14x = 93,482,333.43
5. Step 5: Solve for x
   x = 93,482,333.43/10,909.14
6. Step 6: Final answer
   x = 8,569.18