Finding the Fourth Proportional to 16,240.72, 22,405.05 and 9,522.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,240.72 : 22,405.05 = 9,522.94 : x
2. Step 2: Convert to fraction form
   16,240.72/22,405.05 = 9,522.94/x
3. Step 3: Cross multiply
   16,240.72x = 22,405.05 × 9,522.94
4. Step 4: Simplify right side
   16,240.72x = 213,361,946.85
5. Step 5: Solve for x
   x = 213,361,946.85/16,240.72
6. Step 6: Final answer
   x = 13,137.47