Finding the Fourth Proportional to 16,632.16, 22,951.94 and 9,078.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,632.16 : 22,951.94 = 9,078.58 : x
2. Step 2: Convert to fraction form
   16,632.16/22,951.94 = 9,078.58/x
3. Step 3: Cross multiply
   16,632.16x = 22,951.94 × 9,078.58
4. Step 4: Simplify right side
   16,632.16x = 208,371,006.74
5. Step 5: Solve for x
   x = 208,371,006.74/16,632.16
6. Step 6: Final answer
   x = 12,528.20