Finding the Fourth Proportional to 7,131.83, 9,841.75 and 3,945.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,131.83 : 9,841.75 = 3,945.04 : x
2. Step 2: Convert to fraction form
   7,131.83/9,841.75 = 3,945.04/x
3. Step 3: Cross multiply
   7,131.83x = 9,841.75 × 3,945.04
4. Step 4: Simplify right side
   7,131.83x = 38,826,097.42
5. Step 5: Solve for x
   x = 38,826,097.42/7,131.83
6. Step 6: Final answer
   x = 5,444.06