Finding the Fourth Proportional to 9,665.98, 14,487.81 and 4,393.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.98 : 14,487.81 = 4,393.09 : x
2. Step 2: Convert to fraction form
   9,665.98/14,487.81 = 4,393.09/x
3. Step 3: Cross multiply
   9,665.98x = 14,487.81 × 4,393.09
4. Step 4: Simplify right side
   9,665.98x = 63,646,253.23
5. Step 5: Solve for x
   x = 63,646,253.23/9,665.98
6. Step 6: Final answer
   x = 6,584.56