Finding the Fourth Proportional to 5,196.37, 7,171.77 and 3,180.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.37 : 7,171.77 = 3,180.94 : x
2. Step 2: Convert to fraction form
   5,196.37/7,171.77 = 3,180.94/x
3. Step 3: Cross multiply
   5,196.37x = 7,171.77 × 3,180.94
4. Step 4: Simplify right side
   5,196.37x = 22,812,970.06
5. Step 5: Solve for x
   x = 22,812,970.06/5,196.37
6. Step 6: Final answer
   x = 4,390.17