Finding the Fourth Proportional to 57,112.50, 78,815.52 and 31,962

Step by Step Solution

1. Step 1: Write the proportion equation
   57,112.50 : 78,815.52 = 31,962 : x
2. Step 2: Convert to fraction form
   57,112.50/78,815.52 = 31,962/x
3. Step 3: Cross multiply
   57,112.50x = 78,815.52 × 31,962
4. Step 4: Simplify right side
   57,112.50x = 2,519,101,650.24
5. Step 5: Solve for x
   x = 2,519,101,650.24/57,112.50
6. Step 6: Final answer
   x = 44,107.71