Finding the Fourth Proportional to 7,005.55, 9,667.57 and 3,861.67

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.55 : 9,667.57 = 3,861.67 : x
2. Step 2: Convert to fraction form
   7,005.55/9,667.57 = 3,861.67/x
3. Step 3: Cross multiply
   7,005.55x = 9,667.57 × 3,861.67
4. Step 4: Simplify right side
   7,005.55x = 37,332,965.04
5. Step 5: Solve for x
   x = 37,332,965.04/7,005.55
6. Step 6: Final answer
   x = 5,329.06