Finding the Fourth Proportional to 12,168.63, 16,792.73 and 7,131.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,168.63 : 16,792.73 = 7,131.85 : x
2. Step 2: Convert to fraction form
   12,168.63/16,792.73 = 7,131.85/x
3. Step 3: Cross multiply
   12,168.63x = 16,792.73 × 7,131.85
4. Step 4: Simplify right side
   12,168.63x = 119,763,231.45
5. Step 5: Solve for x
   x = 119,763,231.45/12,168.63
6. Step 6: Final answer
   x = 9,841.97