Finding the Fourth Proportional to 5,058.72, 6,982.56 and 3,196.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,058.72 : 6,982.56 = 3,196.80 : x
2. Step 2: Convert to fraction form
   5,058.72/6,982.56 = 3,196.80/x
3. Step 3: Cross multiply
   5,058.72x = 6,982.56 × 3,196.80
4. Step 4: Simplify right side
   5,058.72x = 22,321,847.81
5. Step 5: Solve for x
   x = 22,321,847.81/5,058.72
6. Step 6: Final answer
   x = 4,412.55