Finding the Fourth Proportional to 12,005.73, 18,019.49 and 6,086.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,005.73 : 18,019.49 = 6,086.74 : x
2. Step 2: Convert to fraction form
   12,005.73/18,019.49 = 6,086.74/x
3. Step 3: Cross multiply
   12,005.73x = 18,019.49 × 6,086.74
4. Step 4: Simplify right side
   12,005.73x = 109,679,920.73
5. Step 5: Solve for x
   x = 109,679,920.73/12,005.73
6. Step 6: Final answer
   x = 9,135.63