Finding the Fourth Proportional to 6,171.31, 8,519.22 and 3,936.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,171.31 : 8,519.22 = 3,936.25 : x
2. Step 2: Convert to fraction form
   6,171.31/8,519.22 = 3,936.25/x
3. Step 3: Cross multiply
   6,171.31x = 8,519.22 × 3,936.25
4. Step 4: Simplify right side
   6,171.31x = 33,533,779.73
5. Step 5: Solve for x
   x = 33,533,779.73/6,171.31
6. Step 6: Final answer
   x = 5,433.82