Finding the Fourth Proportional to 16,358.90, 22,573.59 and 9,189.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,358.90 : 22,573.59 = 9,189.62 : x
2. Step 2: Convert to fraction form
   16,358.90/22,573.59 = 9,189.62/x
3. Step 3: Cross multiply
   16,358.90x = 22,573.59 × 9,189.62
4. Step 4: Simplify right side
   16,358.90x = 207,442,601.27
5. Step 5: Solve for x
   x = 207,442,601.27/16,358.90
6. Step 6: Final answer
   x = 12,680.72