Finding the Fourth Proportional to 47,936.88, 71,910.56 and 12,879.27

Step by Step Solution

1. Step 1: Write the proportion equation
   47,936.88 : 71,910.56 = 12,879.27 : x
2. Step 2: Convert to fraction form
   47,936.88/71,910.56 = 12,879.27/x
3. Step 3: Cross multiply
   47,936.88x = 71,910.56 × 12,879.27
4. Step 4: Simplify right side
   47,936.88x = 926,155,550.29
5. Step 5: Solve for x
   x = 926,155,550.29/47,936.88
6. Step 6: Final answer
   x = 19,320.31