Finding the Fourth Proportional to 3,968.07, 5,934.23 and 3,031.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.07 : 5,934.23 = 3,031.30 : x
2. Step 2: Convert to fraction form
   3,968.07/5,934.23 = 3,031.30/x
3. Step 3: Cross multiply
   3,968.07x = 5,934.23 × 3,031.30
4. Step 4: Simplify right side
   3,968.07x = 17,988,435.03
5. Step 5: Solve for x
   x = 17,988,435.03/3,968.07
6. Step 6: Final answer
   x = 4,533.30