Finding the Fourth Proportional to 7,081.75, 9,773.42 and 3,938.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,081.75 : 9,773.42 = 3,938.55 : x
2. Step 2: Convert to fraction form
   7,081.75/9,773.42 = 3,938.55/x
3. Step 3: Cross multiply
   7,081.75x = 9,773.42 × 3,938.55
4. Step 4: Simplify right side
   7,081.75x = 38,493,103.34
5. Step 5: Solve for x
   x = 38,493,103.34/7,081.75
6. Step 6: Final answer
   x = 5,435.54