Finding the Fourth Proportional to 6,081.81, 9,139.20 and 3,310.53

Step by Step Solution

1. Step 1: Write the proportion equation
   6,081.81 : 9,139.20 = 3,310.53 : x
2. Step 2: Convert to fraction form
   6,081.81/9,139.20 = 3,310.53/x
3. Step 3: Cross multiply
   6,081.81x = 9,139.20 × 3,310.53
4. Step 4: Simplify right side
   6,081.81x = 30,255,595.78
5. Step 5: Solve for x
   x = 30,255,595.78/6,081.81
6. Step 6: Final answer
   x = 4,974.77