Finding the Fourth Proportional to 16,429.96, 22,673.31 and 9,356.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,429.96 : 22,673.31 = 9,356.38 : x
2. Step 2: Convert to fraction form
   16,429.96/22,673.31 = 9,356.38/x
3. Step 3: Cross multiply
   16,429.96x = 22,673.31 × 9,356.38
4. Step 4: Simplify right side
   16,429.96x = 212,140,104.22
5. Step 5: Solve for x
   x = 212,140,104.22/16,429.96
6. Step 6: Final answer
   x = 12,911.78