Finding the Fourth Proportional to 42,633.86, 63,896.06 and 20,413.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,633.86 : 63,896.06 = 20,413.94 : x
2. Step 2: Convert to fraction form
   42,633.86/63,896.06 = 20,413.94/x
3. Step 3: Cross multiply
   42,633.86x = 63,896.06 × 20,413.94
4. Step 4: Simplify right side
   42,633.86x = 1,304,370,335.08
5. Step 5: Solve for x
   x = 1,304,370,335.08/42,633.86
6. Step 6: Final answer
   x = 30,594.70