Finding the Fourth Proportional to 5,116.36, 7,631.92 and 5,031.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.36 : 7,631.92 = 5,031.68 : x
2. Step 2: Convert to fraction form
   5,116.36/7,631.92 = 5,031.68/x
3. Step 3: Cross multiply
   5,116.36x = 7,631.92 × 5,031.68
4. Step 4: Simplify right side
   5,116.36x = 38,401,379.23
5. Step 5: Solve for x
   x = 38,401,379.23/5,116.36
6. Step 6: Final answer
   x = 7,505.61