Finding the Fourth Proportional to 7,009.57, 9,673.32 and 3,865.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,009.57 : 9,673.32 = 3,865.57 : x
2. Step 2: Convert to fraction form
   7,009.57/9,673.32 = 3,865.57/x
3. Step 3: Cross multiply
   7,009.57x = 9,673.32 × 3,865.57
4. Step 4: Simplify right side
   7,009.57x = 37,392,895.59
5. Step 5: Solve for x
   x = 37,392,895.59/7,009.57
6. Step 6: Final answer
   x = 5,334.55