Finding the Fourth Proportional to 57,016.26, 78,682.05 and 31,865.76

Step by Step Solution

1. Step 1: Write the proportion equation
   57,016.26 : 78,682.05 = 31,865.76 : x
2. Step 2: Convert to fraction form
   57,016.26/78,682.05 = 31,865.76/x
3. Step 3: Cross multiply
   57,016.26x = 78,682.05 × 31,865.76
4. Step 4: Simplify right side
   57,016.26x = 2,507,263,321.61
5. Step 5: Solve for x
   x = 2,507,263,321.61/57,016.26
6. Step 6: Final answer
   x = 43,974.53