Finding the Fourth Proportional to 22,144.58, 30,557.99 and 12,455.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,144.58 : 30,557.99 = 12,455.49 : x
2. Step 2: Convert to fraction form
   22,144.58/30,557.99 = 12,455.49/x
3. Step 3: Cross multiply
   22,144.58x = 30,557.99 × 12,455.49
4. Step 4: Simplify right side
   22,144.58x = 380,614,676.59
5. Step 5: Solve for x
   x = 380,614,676.59/22,144.58
6. Step 6: Final answer
   x = 17,187.71