Finding the Fourth Proportional to 16,355.96, 24,542.82 and 12,665.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,355.96 : 24,542.82 = 12,665.42 : x
2. Step 2: Convert to fraction form
   16,355.96/24,542.82 = 12,665.42/x
3. Step 3: Cross multiply
   16,355.96x = 24,542.82 × 12,665.42
4. Step 4: Simplify right side
   16,355.96x = 310,845,123.28
5. Step 5: Solve for x
   x = 310,845,123.28/16,355.96
6. Step 6: Final answer
   x = 19,005.01