Finding the Fourth Proportional to 57,016.96, 78,680.94 and 31,175.04

Step by Step Solution

1. Step 1: Write the proportion equation
   57,016.96 : 78,680.94 = 31,175.04 : x
2. Step 2: Convert to fraction form
   57,016.96/78,680.94 = 31,175.04/x
3. Step 3: Cross multiply
   57,016.96x = 78,680.94 × 31,175.04
4. Step 4: Simplify right side
   57,016.96x = 2,452,881,629.88
5. Step 5: Solve for x
   x = 2,452,881,629.88/57,016.96
6. Step 6: Final answer
   x = 43,020.21