Finding the Fourth Proportional to 12,796.88, 19,198.79 and 3,911.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.88 : 19,198.79 = 3,911.97 : x
2. Step 2: Convert to fraction form
   12,796.88/19,198.79 = 3,911.97/x
3. Step 3: Cross multiply
   12,796.88x = 19,198.79 × 3,911.97
4. Step 4: Simplify right side
   12,796.88x = 75,105,070.96
5. Step 5: Solve for x
   x = 75,105,070.96/12,796.88
6. Step 6: Final answer
   x = 5,869.01