Finding the Fourth Proportional to 7,081.57, 9,772.59 and 3,937.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,081.57 : 9,772.59 = 3,937.75 : x
2. Step 2: Convert to fraction form
   7,081.57/9,772.59 = 3,937.75/x
3. Step 3: Cross multiply
   7,081.57x = 9,772.59 × 3,937.75
4. Step 4: Simplify right side
   7,081.57x = 38,482,016.27
5. Step 5: Solve for x
   x = 38,482,016.27/7,081.57
6. Step 6: Final answer
   x = 5,434.11