Finding the Fourth Proportional to 5,116.37, 7,666.25 and 2,647.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.37 : 7,666.25 = 2,647.69 : x
2. Step 2: Convert to fraction form
   5,116.37/7,666.25 = 2,647.69/x
3. Step 3: Cross multiply
   5,116.37x = 7,666.25 × 2,647.69
4. Step 4: Simplify right side
   5,116.37x = 20,297,821.06
5. Step 5: Solve for x
   x = 20,297,821.06/5,116.37
6. Step 6: Final answer
   x = 3,967.23