Finding the Fourth Proportional to 19,644.24, 27,109.61 and 10,692.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,644.24 : 27,109.61 = 10,692.31 : x
2. Step 2: Convert to fraction form
   19,644.24/27,109.61 = 10,692.31/x
3. Step 3: Cross multiply
   19,644.24x = 27,109.61 × 10,692.31
4. Step 4: Simplify right side
   19,644.24x = 289,864,354.10
5. Step 5: Solve for x
   x = 289,864,354.10/19,644.24
6. Step 6: Final answer
   x = 14,755.69