Finding the Fourth Proportional to 5,173.32, 7,756.38 and 3,198.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,173.32 : 7,756.38 = 3,198.72 : x
2. Step 2: Convert to fraction form
   5,173.32/7,756.38 = 3,198.72/x
3. Step 3: Cross multiply
   5,173.32x = 7,756.38 × 3,198.72
4. Step 4: Simplify right side
   5,173.32x = 24,810,487.83
5. Step 5: Solve for x
   x = 24,810,487.83/5,173.32
6. Step 6: Final answer
   x = 4,795.85