Finding the Fourth Proportional to 5,196.52, 7,171.28 and 3,686.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.52 : 7,171.28 = 3,686.73 : x
2. Step 2: Convert to fraction form
   5,196.52/7,171.28 = 3,686.73/x
3. Step 3: Cross multiply
   5,196.52x = 7,171.28 × 3,686.73
4. Step 4: Simplify right side
   5,196.52x = 26,438,573.11
5. Step 5: Solve for x
   x = 26,438,573.11/5,196.52
6. Step 6: Final answer
   x = 5,087.75