Finding the Fourth Proportional to 22,131.99, 30,512.25 and 21,444.03

Step by Step Solution

1. Step 1: Write the proportion equation
   22,131.99 : 30,512.25 = 21,444.03 : x
2. Step 2: Convert to fraction form
   22,131.99/30,512.25 = 21,444.03/x
3. Step 3: Cross multiply
   22,131.99x = 30,512.25 × 21,444.03
4. Step 4: Simplify right side
   22,131.99x = 654,305,604.37
5. Step 5: Solve for x
   x = 654,305,604.37/22,131.99
6. Step 6: Final answer
   x = 29,563.79