Finding the Fourth Proportional to 12,727.92, 19,091.72 and 3,962.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,727.92 : 19,091.72 = 3,962.80 : x
2. Step 2: Convert to fraction form
   12,727.92/19,091.72 = 3,962.80/x
3. Step 3: Cross multiply
   12,727.92x = 19,091.72 × 3,962.80
4. Step 4: Simplify right side
   12,727.92x = 75,656,668.02
5. Step 5: Solve for x
   x = 75,656,668.02/12,727.92
6. Step 6: Final answer
   x = 5,944.15