Finding the Fourth Proportional to 7,131.03, 9,839.25 and 4,145.33

Step by Step Solution

1. Step 1: Write the proportion equation
   7,131.03 : 9,839.25 = 4,145.33 : x
2. Step 2: Convert to fraction form
   7,131.03/9,839.25 = 4,145.33/x
3. Step 3: Cross multiply
   7,131.03x = 9,839.25 × 4,145.33
4. Step 4: Simplify right side
   7,131.03x = 40,786,889.01
5. Step 5: Solve for x
   x = 40,786,889.01/7,131.03
6. Step 6: Final answer
   x = 5,719.64