Finding the Fourth Proportional to 7,005.50, 9,667.59 and 3,861.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.50 : 9,667.59 = 3,861.89 : x
2. Step 2: Convert to fraction form
   7,005.50/9,667.59 = 3,861.89/x
3. Step 3: Cross multiply
   7,005.50x = 9,667.59 × 3,861.89
4. Step 4: Simplify right side
   7,005.50x = 37,335,169.15
5. Step 5: Solve for x
   x = 37,335,169.15/7,005.50
6. Step 6: Final answer
   x = 5,329.41