Finding the Fourth Proportional to 57,016.32, 78,682.32 and 31,865.82

Step by Step Solution

1. Step 1: Write the proportion equation
   57,016.32 : 78,682.32 = 31,865.82 : x
2. Step 2: Convert to fraction form
   57,016.32/78,682.32 = 31,865.82/x
3. Step 3: Cross multiply
   57,016.32x = 78,682.32 × 31,865.82
4. Step 4: Simplify right side
   57,016.32x = 2,507,276,558.52
5. Step 5: Solve for x
   x = 2,507,276,558.52/57,016.32
6. Step 6: Final answer
   x = 43,974.72