Finding the Fourth Proportional to 16,148.28, 24,196.82 and 12,459.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,148.28 : 24,196.82 = 12,459.54 : x
2. Step 2: Convert to fraction form
   16,148.28/24,196.82 = 12,459.54/x
3. Step 3: Cross multiply
   16,148.28x = 24,196.82 × 12,459.54
4. Step 4: Simplify right side
   16,148.28x = 301,481,246.66
5. Step 5: Solve for x
   x = 301,481,246.66/16,148.28
6. Step 6: Final answer
   x = 18,669.56