Finding the Fourth Proportional to 50,498.55, 69,714.78 and 39,142.56

Step by Step Solution

1. Step 1: Write the proportion equation
   50,498.55 : 69,714.78 = 39,142.56 : x
2. Step 2: Convert to fraction form
   50,498.55/69,714.78 = 39,142.56/x
3. Step 3: Cross multiply
   50,498.55x = 69,714.78 × 39,142.56
4. Step 4: Simplify right side
   50,498.55x = 2,728,814,959.04
5. Step 5: Solve for x
   x = 2,728,814,959.04/50,498.55
6. Step 6: Final answer
   x = 54,037.49