Finding the Fourth Proportional to 5,198.27, 7,173.69 and 3,688.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,198.27 : 7,173.69 = 3,688.49 : x
2. Step 2: Convert to fraction form
   5,198.27/7,173.69 = 3,688.49/x
3. Step 3: Cross multiply
   5,198.27x = 7,173.69 × 3,688.49
4. Step 4: Simplify right side
   5,198.27x = 26,460,083.83
5. Step 5: Solve for x
   x = 26,460,083.83/5,198.27
6. Step 6: Final answer
   x = 5,090.17