Finding the Fourth Proportional to 52,287.81, 72,155.23 and 28,413.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,287.81 : 72,155.23 = 28,413.96 : x
2. Step 2: Convert to fraction form
   52,287.81/72,155.23 = 28,413.96/x
3. Step 3: Cross multiply
   52,287.81x = 72,155.23 × 28,413.96
4. Step 4: Simplify right side
   52,287.81x = 2,050,215,819.01
5. Step 5: Solve for x
   x = 2,050,215,819.01/52,287.81
6. Step 6: Final answer
   x = 39,210.21