Finding the Fourth Proportional to 5,311.04, 7,968.72 and 2,677.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,311.04 : 7,968.72 = 2,677.12 : x
2. Step 2: Convert to fraction form
   5,311.04/7,968.72 = 2,677.12/x
3. Step 3: Cross multiply
   5,311.04x = 7,968.72 × 2,677.12
4. Step 4: Simplify right side
   5,311.04x = 21,333,209.80
5. Step 5: Solve for x
   x = 21,333,209.80/5,311.04
6. Step 6: Final answer
   x = 4,016.77