Finding the Fourth Proportional to 16,409.45, 22,642.61 and 9,238.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,409.45 : 22,642.61 = 9,238.32 : x
2. Step 2: Convert to fraction form
   16,409.45/22,642.61 = 9,238.32/x
3. Step 3: Cross multiply
   16,409.45x = 22,642.61 × 9,238.32
4. Step 4: Simplify right side
   16,409.45x = 209,179,630.62
5. Step 5: Solve for x
   x = 209,179,630.62/16,409.45
6. Step 6: Final answer
   x = 12,747.51