Finding the Fourth Proportional to 51,258.16, 70,724.18 and 31,114.54

Step by Step Solution

1. Step 1: Write the proportion equation
   51,258.16 : 70,724.18 = 31,114.54 : x
2. Step 2: Convert to fraction form
   51,258.16/70,724.18 = 31,114.54/x
3. Step 3: Cross multiply
   51,258.16x = 70,724.18 × 31,114.54
4. Step 4: Simplify right side
   51,258.16x = 2,200,550,327.58
5. Step 5: Solve for x
   x = 2,200,550,327.58/51,258.16
6. Step 6: Final answer
   x = 42,930.73