Finding the Fourth Proportional to 21,693.69, 29,937.51 and 12,744.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,693.69 : 29,937.51 = 12,744.09 : x
2. Step 2: Convert to fraction form
   21,693.69/29,937.51 = 12,744.09/x
3. Step 3: Cross multiply
   21,693.69x = 29,937.51 × 12,744.09
4. Step 4: Simplify right side
   21,693.69x = 381,526,321.82
5. Step 5: Solve for x
   x = 381,526,321.82/21,693.69
6. Step 6: Final answer
   x = 17,586.97