Finding the Fourth Proportional to 42,011.27, 57,936.59 and 30,662.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,011.27 : 57,936.59 = 30,662.80 : x
2. Step 2: Convert to fraction form
   42,011.27/57,936.59 = 30,662.80/x
3. Step 3: Cross multiply
   42,011.27x = 57,936.59 × 30,662.80
4. Step 4: Simplify right side
   42,011.27x = 1,776,498,003.67
5. Step 5: Solve for x
   x = 1,776,498,003.67/42,011.27
6. Step 6: Final answer
   x = 42,286.23