Finding the Fourth Proportional to 57,012, 78,676.56 and 31,861.52

Step by Step Solution

1. Step 1: Write the proportion equation
   57,012 : 78,676.56 = 31,861.52 : x
2. Step 2: Convert to fraction form
   57,012/78,676.56 = 31,861.52/x
3. Step 3: Cross multiply
   57,012x = 78,676.56 × 31,861.52
4. Step 4: Simplify right side
   57,012x = 2,506,754,789.97
5. Step 5: Solve for x
   x = 2,506,754,789.97/57,012
6. Step 6: Final answer
   x = 43,968.90