Finding the Fourth Proportional to 7,077.19, 9,766.42 and 3,933.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,077.19 : 9,766.42 = 3,933.31 : x
2. Step 2: Convert to fraction form
   7,077.19/9,766.42 = 3,933.31/x
3. Step 3: Cross multiply
   7,077.19x = 9,766.42 × 3,933.31
4. Step 4: Simplify right side
   7,077.19x = 38,414,357.45
5. Step 5: Solve for x
   x = 38,414,357.45/7,077.19
6. Step 6: Final answer
   x = 5,427.91