Finding the Fourth Proportional to 55,142.94, 76,114.56 and 31,285.46

Step by Step Solution

1. Step 1: Write the proportion equation
   55,142.94 : 76,114.56 = 31,285.46 : x
2. Step 2: Convert to fraction form
   55,142.94/76,114.56 = 31,285.46/x
3. Step 3: Cross multiply
   55,142.94x = 76,114.56 × 31,285.46
4. Step 4: Simplify right side
   55,142.94x = 2,381,279,022.30
5. Step 5: Solve for x
   x = 2,381,279,022.30/55,142.94
6. Step 6: Final answer
   x = 43,183.75