Finding the Fourth Proportional to 52,413.76, 72,328.52 and 28,540.36

Step by Step Solution

1. Step 1: Write the proportion equation
   52,413.76 : 72,328.52 = 28,540.36 : x
2. Step 2: Convert to fraction form
   52,413.76/72,328.52 = 28,540.36/x
3. Step 3: Cross multiply
   52,413.76x = 72,328.52 × 28,540.36
4. Step 4: Simplify right side
   52,413.76x = 2,064,282,160.83
5. Step 5: Solve for x
   x = 2,064,282,160.83/52,413.76
6. Step 6: Final answer
   x = 39,384.35