Finding the Fourth Proportional to 10,789.18, 16,153.33 and 5,711.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,789.18 : 16,153.33 = 5,711.86 : x
2. Step 2: Convert to fraction form
   10,789.18/16,153.33 = 5,711.86/x
3. Step 3: Cross multiply
   10,789.18x = 16,153.33 × 5,711.86
4. Step 4: Simplify right side
   10,789.18x = 92,265,559.49
5. Step 5: Solve for x
   x = 92,265,559.49/10,789.18
6. Step 6: Final answer
   x = 8,551.68