Finding the Fourth Proportional to 9,665.88, 14,466.42 and 7,118.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.88 : 14,466.42 = 7,118.88 : x
2. Step 2: Convert to fraction form
   9,665.88/14,466.42 = 7,118.88/x
3. Step 3: Cross multiply
   9,665.88x = 14,466.42 × 7,118.88
4. Step 4: Simplify right side
   9,665.88x = 102,984,708.01
5. Step 5: Solve for x
   x = 102,984,708.01/9,665.88
6. Step 6: Final answer
   x = 10,654.46