Finding the Fourth Proportional to 7,665.23, 11,493.50 and 2,665.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,665.23 : 11,493.50 = 2,665.30 : x
2. Step 2: Convert to fraction form
   7,665.23/11,493.50 = 2,665.30/x
3. Step 3: Cross multiply
   7,665.23x = 11,493.50 × 2,665.30
4. Step 4: Simplify right side
   7,665.23x = 30,633,625.55
5. Step 5: Solve for x
   x = 30,633,625.55/7,665.23
6. Step 6: Final answer
   x = 3,996.44