Finding the Fourth Proportional to 12,086.56, 16,678.20 and 7,049.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.56 : 16,678.20 = 7,049.44 : x
2. Step 2: Convert to fraction form
   12,086.56/16,678.20 = 7,049.44/x
3. Step 3: Cross multiply
   12,086.56x = 16,678.20 × 7,049.44
4. Step 4: Simplify right side
   12,086.56x = 117,571,970.21
5. Step 5: Solve for x
   x = 117,571,970.21/12,086.56
6. Step 6: Final answer
   x = 9,727.50