Finding the Fourth Proportional to 3,751.76, 5,165.33 and 3,087.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,751.76 : 5,165.33 = 3,087.47 : x
2. Step 2: Convert to fraction form
   3,751.76/5,165.33 = 3,087.47/x
3. Step 3: Cross multiply
   3,751.76x = 5,165.33 × 3,087.47
4. Step 4: Simplify right side
   3,751.76x = 15,947,798.89
5. Step 5: Solve for x
   x = 15,947,798.89/3,751.76
6. Step 6: Final answer
   x = 4,250.75