Finding the Fourth Proportional to 21,994.91, 30,354.59 and 12,563.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,994.91 : 30,354.59 = 12,563.27 : x
2. Step 2: Convert to fraction form
   21,994.91/30,354.59 = 12,563.27/x
3. Step 3: Cross multiply
   21,994.91x = 30,354.59 × 12,563.27
4. Step 4: Simplify right side
   21,994.91x = 381,352,847.09
5. Step 5: Solve for x
   x = 381,352,847.09/21,994.91
6. Step 6: Final answer
   x = 17,338.23