Finding the Fourth Proportional to 9,628.89, 14,443.38 and 2,965.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628.89 : 14,443.38 = 2,965.31 : x
2. Step 2: Convert to fraction form
   9,628.89/14,443.38 = 2,965.31/x
3. Step 3: Cross multiply
   9,628.89x = 14,443.38 × 2,965.31
4. Step 4: Simplify right side
   9,628.89x = 42,829,026.93
5. Step 5: Solve for x
   x = 42,829,026.93/9,628.89
6. Step 6: Final answer
   x = 4,447.97