Finding the Fourth Proportional to 5,315.63, 7,323.89 and 3,965.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,315.63 : 7,323.89 = 3,965.49 : x
2. Step 2: Convert to fraction form
   5,315.63/7,323.89 = 3,965.49/x
3. Step 3: Cross multiply
   5,315.63x = 7,323.89 × 3,965.49
4. Step 4: Simplify right side
   5,315.63x = 29,042,792.73
5. Step 5: Solve for x
   x = 29,042,792.73/5,315.63
6. Step 6: Final answer
   x = 5,463.66