Finding the Fourth Proportional to 16,429.89, 22,673.46 and 9,356.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,429.89 : 22,673.46 = 9,356.34 : x
2. Step 2: Convert to fraction form
   16,429.89/22,673.46 = 9,356.34/x
3. Step 3: Cross multiply
   16,429.89x = 22,673.46 × 9,356.34
4. Step 4: Simplify right side
   16,429.89x = 212,140,600.74
5. Step 5: Solve for x
   x = 212,140,600.74/16,429.89
6. Step 6: Final answer
   x = 12,911.87