Finding the Fourth Proportional to 9,862.92, 14,786.16 and 3,936.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,862.92 : 14,786.16 = 3,936.12 : x
2. Step 2: Convert to fraction form
   9,862.92/14,786.16 = 3,936.12/x
3. Step 3: Cross multiply
   9,862.92x = 14,786.16 × 3,936.12
4. Step 4: Simplify right side
   9,862.92x = 58,200,100.10
5. Step 5: Solve for x
   x = 58,200,100.10/9,862.92
6. Step 6: Final answer
   x = 5,900.90