Finding the Fourth Proportional to 5,751.88, 7,941.45 and 3,866.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,751.88 : 7,941.45 = 3,866.28 : x
2. Step 2: Convert to fraction form
   5,751.88/7,941.45 = 3,866.28/x
3. Step 3: Cross multiply
   5,751.88x = 7,941.45 × 3,866.28
4. Step 4: Simplify right side
   5,751.88x = 30,703,869.31
5. Step 5: Solve for x
   x = 30,703,869.31/5,751.88
6. Step 6: Final answer
   x = 5,338.06