Finding the Fourth Proportional to 13,021.83, 17,978.36 and 10,044.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,021.83 : 17,978.36 = 10,044.27 : x
2. Step 2: Convert to fraction form
   13,021.83/17,978.36 = 10,044.27/x
3. Step 3: Cross multiply
   13,021.83x = 17,978.36 × 10,044.27
4. Step 4: Simplify right side
   13,021.83x = 180,579,451.78
5. Step 5: Solve for x
   x = 180,579,451.78/13,021.83
6. Step 6: Final answer
   x = 13,867.44