Finding the Fourth Proportional to 12,185.02, 16,843.90 and 8,678.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.02 : 16,843.90 = 8,678.52 : x
2. Step 2: Convert to fraction form
   12,185.02/16,843.90 = 8,678.52/x
3. Step 3: Cross multiply
   12,185.02x = 16,843.90 × 8,678.52
4. Step 4: Simplify right side
   12,185.02x = 146,180,123.03
5. Step 5: Solve for x
   x = 146,180,123.03/12,185.02
6. Step 6: Final answer
   x = 11,996.71