Finding the Fourth Proportional to 16,424.18, 22,669.42 and 9,354.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,424.18 : 22,669.42 = 9,354.78 : x
2. Step 2: Convert to fraction form
   16,424.18/22,669.42 = 9,354.78/x
3. Step 3: Cross multiply
   16,424.18x = 22,669.42 × 9,354.78
4. Step 4: Simplify right side
   16,424.18x = 212,067,436.83
5. Step 5: Solve for x
   x = 212,067,436.83/16,424.18
6. Step 6: Final answer
   x = 12,911.90