Finding the Fourth Proportional to 10,986.52, 16,476.37 and 3,965.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,986.52 : 16,476.37 = 3,965.63 : x
2. Step 2: Convert to fraction form
   10,986.52/16,476.37 = 3,965.63/x
3. Step 3: Cross multiply
   10,986.52x = 16,476.37 × 3,965.63
4. Step 4: Simplify right side
   10,986.52x = 65,339,187.16
5. Step 5: Solve for x
   x = 65,339,187.16/10,986.52
6. Step 6: Final answer
   x = 5,947.21