Finding the Fourth Proportional to 51,854.05, 71,563.94 and 31,724.31

Step by Step Solution

1. Step 1: Write the proportion equation
   51,854.05 : 71,563.94 = 31,724.31 : x
2. Step 2: Convert to fraction form
   51,854.05/71,563.94 = 31,724.31/x
3. Step 3: Cross multiply
   51,854.05x = 71,563.94 × 31,724.31
4. Step 4: Simplify right side
   51,854.05x = 2,270,316,458.76
5. Step 5: Solve for x
   x = 2,270,316,458.76/51,854.05
6. Step 6: Final answer
   x = 43,782.82