Finding the Fourth Proportional to 50,724.24, 76,057.56 and 42,455.76

Step by Step Solution

1. Step 1: Write the proportion equation
   50,724.24 : 76,057.56 = 42,455.76 : x
2. Step 2: Convert to fraction form
   50,724.24/76,057.56 = 42,455.76/x
3. Step 3: Cross multiply
   50,724.24x = 76,057.56 × 42,455.76
4. Step 4: Simplify right side
   50,724.24x = 3,229,081,513.55
5. Step 5: Solve for x
   x = 3,229,081,513.55/50,724.24
6. Step 6: Final answer
   x = 63,659.53