Finding the Fourth Proportional to 19,724.34, 27,218.79 and 10,771.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,724.34 : 27,218.79 = 10,771.50 : x
2. Step 2: Convert to fraction form
   19,724.34/27,218.79 = 10,771.50/x
3. Step 3: Cross multiply
   19,724.34x = 27,218.79 × 10,771.50
4. Step 4: Simplify right side
   19,724.34x = 293,187,196.49
5. Step 5: Solve for x
   x = 293,187,196.49/19,724.34
6. Step 6: Final answer
   x = 14,864.23