Finding the Fourth Proportional to 57,458.56, 79,297.56 and 31,969.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,458.56 : 79,297.56 = 31,969.72 : x
2. Step 2: Convert to fraction form
   57,458.56/79,297.56 = 31,969.72/x
3. Step 3: Cross multiply
   57,458.56x = 79,297.56 × 31,969.72
4. Step 4: Simplify right side
   57,458.56x = 2,535,120,789.88
5. Step 5: Solve for x
   x = 2,535,120,789.88/57,458.56
6. Step 6: Final answer
   x = 44,120.85