Finding the Fourth Proportional to 42,003.91, 62,995.91 and 12,017.23

Step by Step Solution

1. Step 1: Write the proportion equation
   42,003.91 : 62,995.91 = 12,017.23 : x
2. Step 2: Convert to fraction form
   42,003.91/62,995.91 = 12,017.23/x
3. Step 3: Cross multiply
   42,003.91x = 62,995.91 × 12,017.23
4. Step 4: Simplify right side
   42,003.91x = 757,036,212.08
5. Step 5: Solve for x
   x = 757,036,212.08/42,003.91
6. Step 6: Final answer
   x = 18,022.99