Finding the Fourth Proportional to 3,766.24, 5,198.88 and 3,666.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,766.24 : 5,198.88 = 3,666.88 : x
2. Step 2: Convert to fraction form
   3,766.24/5,198.88 = 3,666.88/x
3. Step 3: Cross multiply
   3,766.24x = 5,198.88 × 3,666.88
4. Step 4: Simplify right side
   3,766.24x = 19,063,669.09
5. Step 5: Solve for x
   x = 19,063,669.09/3,766.24
6. Step 6: Final answer
   x = 5,061.72