Finding the Fourth Proportional to 9,665.34, 13,365.02 and 7,672.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.34 : 13,365.02 = 7,672.44 : x
2. Step 2: Convert to fraction form
   9,665.34/13,365.02 = 7,672.44/x
3. Step 3: Cross multiply
   9,665.34x = 13,365.02 × 7,672.44
4. Step 4: Simplify right side
   9,665.34x = 102,542,314.05
5. Step 5: Solve for x
   x = 102,542,314.05/9,665.34
6. Step 6: Final answer
   x = 10,609.28