Finding the Fourth Proportional to 7,005.51, 9,667.58 and 3,861.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.51 : 9,667.58 = 3,861.69 : x
2. Step 2: Convert to fraction form
   7,005.51/9,667.58 = 3,861.69/x
3. Step 3: Cross multiply
   7,005.51x = 9,667.58 × 3,861.69
4. Step 4: Simplify right side
   7,005.51x = 37,333,177.70
5. Step 5: Solve for x
   x = 37,333,177.70/7,005.51
6. Step 6: Final answer
   x = 5,329.12