Finding the Fourth Proportional to 7,131.42, 9,841.43 and 3,944.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,131.42 : 9,841.43 = 3,944.55 : x
2. Step 2: Convert to fraction form
   7,131.42/9,841.43 = 3,944.55/x
3. Step 3: Cross multiply
   7,131.42x = 9,841.43 × 3,944.55
4. Step 4: Simplify right side
   7,131.42x = 38,819,992.98
5. Step 5: Solve for x
   x = 38,819,992.98/7,131.42
6. Step 6: Final answer
   x = 5,443.52