Finding the Fourth Proportional to 6,581.94, 9,870.26 and 3,116.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,581.94 : 9,870.26 = 3,116.76 : x
2. Step 2: Convert to fraction form
   6,581.94/9,870.26 = 3,116.76/x
3. Step 3: Cross multiply
   6,581.94x = 9,870.26 × 3,116.76
4. Step 4: Simplify right side
   6,581.94x = 30,763,231.56
5. Step 5: Solve for x
   x = 30,763,231.56/6,581.94
6. Step 6: Final answer
   x = 4,673.89