Finding the Fourth Proportional to 21,786.52, 30,065.38 and 11,850.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,786.52 : 30,065.38 = 11,850.52 : x
2. Step 2: Convert to fraction form
   21,786.52/30,065.38 = 11,850.52/x
3. Step 3: Cross multiply
   21,786.52x = 30,065.38 × 11,850.52
4. Step 4: Simplify right side
   21,786.52x = 356,290,387.00
5. Step 5: Solve for x
   x = 356,290,387.00/21,786.52
6. Step 6: Final answer
   x = 16,353.71