Finding the Fourth Proportional to 21,984.34, 30,337.73 and 12,551.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,984.34 : 30,337.73 = 12,551.06 : x
2. Step 2: Convert to fraction form
   21,984.34/30,337.73 = 12,551.06/x
3. Step 3: Cross multiply
   21,984.34x = 30,337.73 × 12,551.06
4. Step 4: Simplify right side
   21,984.34x = 380,770,669.49
5. Step 5: Solve for x
   x = 380,770,669.49/21,984.34
6. Step 6: Final answer
   x = 17,320.09