Finding the Fourth Proportional to 19,896.50, 27,456.31 and 10,943.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,896.50 : 27,456.31 = 10,943.42 : x
2. Step 2: Convert to fraction form
   19,896.50/27,456.31 = 10,943.42/x
3. Step 3: Cross multiply
   19,896.50x = 27,456.31 × 10,943.42
4. Step 4: Simplify right side
   19,896.50x = 300,465,931.98
5. Step 5: Solve for x
   x = 300,465,931.98/19,896.50
6. Step 6: Final answer
   x = 15,101.45