Finding the Fourth Proportional to 57,116.23, 78,820.39 and 31,965.73

Step by Step Solution

1. Step 1: Write the proportion equation
   57,116.23 : 78,820.39 = 31,965.73 : x
2. Step 2: Convert to fraction form
   57,116.23/78,820.39 = 31,965.73/x
3. Step 3: Cross multiply
   57,116.23x = 78,820.39 × 31,965.73
4. Step 4: Simplify right side
   57,116.23x = 2,519,551,225.32
5. Step 5: Solve for x
   x = 2,519,551,225.32/57,116.23
6. Step 6: Final answer
   x = 44,112.70