Finding the Fourth Proportional to 8,485.28, 12,723.81 and 2,936.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,485.28 : 12,723.81 = 2,936.69 : x
2. Step 2: Convert to fraction form
   8,485.28/12,723.81 = 2,936.69/x
3. Step 3: Cross multiply
   8,485.28x = 12,723.81 × 2,936.69
4. Step 4: Simplify right side
   8,485.28x = 37,365,885.59
5. Step 5: Solve for x
   x = 37,365,885.59/8,485.28
6. Step 6: Final answer
   x = 4,403.61