Finding the Fourth Proportional to 12,015.71, 16,581.71 and 6,710.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,015.71 : 16,581.71 = 6,710.72 : x
2. Step 2: Convert to fraction form
   12,015.71/16,581.71 = 6,710.72/x
3. Step 3: Cross multiply
   12,015.71x = 16,581.71 × 6,710.72
4. Step 4: Simplify right side
   12,015.71x = 111,275,179.38
5. Step 5: Solve for x
   x = 111,275,179.38/12,015.71
6. Step 6: Final answer
   x = 9,260.81