Finding the Fourth Proportional to 21,019.36, 29,001.56 and 13,848.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,019.36 : 29,001.56 = 13,848.48 : x
2. Step 2: Convert to fraction form
   21,019.36/29,001.56 = 13,848.48/x
3. Step 3: Cross multiply
   21,019.36x = 29,001.56 × 13,848.48
4. Step 4: Simplify right side
   21,019.36x = 401,627,523.63
5. Step 5: Solve for x
   x = 401,627,523.63/21,019.36
6. Step 6: Final answer
   x = 19,107.50