Finding the Fourth Proportional to 49,758.20, 68,617.41 and 42,225.20

Step by Step Solution

1. Step 1: Write the proportion equation
   49,758.20 : 68,617.41 = 42,225.20 : x
2. Step 2: Convert to fraction form
   49,758.20/68,617.41 = 42,225.20/x
3. Step 3: Cross multiply
   49,758.20x = 68,617.41 × 42,225.20
4. Step 4: Simplify right side
   49,758.20x = 2,897,383,517.64
5. Step 5: Solve for x
   x = 2,897,383,517.64/49,758.20
6. Step 6: Final answer
   x = 58,229.27