Finding the Fourth Proportional to 40,413.72, 55,772.65 and 22,508.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,413.72 : 55,772.65 = 22,508.72 : x
2. Step 2: Convert to fraction form
   40,413.72/55,772.65 = 22,508.72/x
3. Step 3: Cross multiply
   40,413.72x = 55,772.65 × 22,508.72
4. Step 4: Simplify right side
   40,413.72x = 1,255,370,962.51
5. Step 5: Solve for x
   x = 1,255,370,962.51/40,413.72
6. Step 6: Final answer
   x = 31,062.99