Finding the Fourth Proportional to 20,292.89, 30,413.34 and 8,590.01

Step by Step Solution

1. Step 1: Write the proportion equation
   20,292.89 : 30,413.34 = 8,590.01 : x
2. Step 2: Convert to fraction form
   20,292.89/30,413.34 = 8,590.01/x
3. Step 3: Cross multiply
   20,292.89x = 30,413.34 × 8,590.01
4. Step 4: Simplify right side
   20,292.89x = 261,250,742.67
5. Step 5: Solve for x
   x = 261,250,742.67/20,292.89
6. Step 6: Final answer
   x = 12,874.01