Finding the Fourth Proportional to 57,871.04, 79,863.72 and 32,720

Step by Step Solution

1. Step 1: Write the proportion equation
   57,871.04 : 79,863.72 = 32,720 : x
2. Step 2: Convert to fraction form
   57,871.04/79,863.72 = 32,720/x
3. Step 3: Cross multiply
   57,871.04x = 79,863.72 × 32,720
4. Step 4: Simplify right side
   57,871.04x = 2,613,140,918.40
5. Step 5: Solve for x
   x = 2,613,140,918.40/57,871.04
6. Step 6: Final answer
   x = 45,154.55