Finding the Fourth Proportional to 21,013.14, 29,009.98 and 13,949.22

Step by Step Solution

1. Step 1: Write the proportion equation
   21,013.14 : 29,009.98 = 13,949.22 : x
2. Step 2: Convert to fraction form
   21,013.14/29,009.98 = 13,949.22/x
3. Step 3: Cross multiply
   21,013.14x = 29,009.98 × 13,949.22
4. Step 4: Simplify right side
   21,013.14x = 404,666,593.22
5. Step 5: Solve for x
   x = 404,666,593.22/21,013.14
6. Step 6: Final answer
   x = 19,257.79