Finding the Fourth Proportional to 9,665.15, 14,499.54 and 3,089.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.15 : 14,499.54 = 3,089.57 : x
2. Step 2: Convert to fraction form
   9,665.15/14,499.54 = 3,089.57/x
3. Step 3: Cross multiply
   9,665.15x = 14,499.54 × 3,089.57
4. Step 4: Simplify right side
   9,665.15x = 44,797,343.80
5. Step 5: Solve for x
   x = 44,797,343.80/9,665.15
6. Step 6: Final answer
   x = 4,634.94