Finding the Fourth Proportional to 10,896.62, 16,343.31 and 3,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,896.62 : 16,343.31 = 3,969.50 : x
2. Step 2: Convert to fraction form
   10,896.62/16,343.31 = 3,969.50/x
3. Step 3: Cross multiply
   10,896.62x = 16,343.31 × 3,969.50
4. Step 4: Simplify right side
   10,896.62x = 64,874,769.05
5. Step 5: Solve for x
   x = 64,874,769.05/10,896.62
6. Step 6: Final answer
   x = 5,953.66