Finding the Fourth Proportional to 10,667.05, 16,000.67 and 4,091.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.05 : 16,000.67 = 4,091.68 : x
2. Step 2: Convert to fraction form
   10,667.05/16,000.67 = 4,091.68/x
3. Step 3: Cross multiply
   10,667.05x = 16,000.67 × 4,091.68
4. Step 4: Simplify right side
   10,667.05x = 65,469,520.96
5. Step 5: Solve for x
   x = 65,469,520.96/10,667.05
6. Step 6: Final answer
   x = 6,137.55