Finding the Fourth Proportional to 7,005.72, 9,667.48 and 3,861.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.72 : 9,667.48 = 3,861.96 : x
2. Step 2: Convert to fraction form
   7,005.72/9,667.48 = 3,861.96/x
3. Step 3: Cross multiply
   7,005.72x = 9,667.48 × 3,861.96
4. Step 4: Simplify right side
   7,005.72x = 37,335,421.06
5. Step 5: Solve for x
   x = 37,335,421.06/7,005.72
6. Step 6: Final answer
   x = 5,329.28