Finding the Fourth Proportional to 65,871.86, 98,777.55 and 28,413.98

Step by Step Solution

1. Step 1: Write the proportion equation
   65,871.86 : 98,777.55 = 28,413.98 : x
2. Step 2: Convert to fraction form
   65,871.86/98,777.55 = 28,413.98/x
3. Step 3: Cross multiply
   65,871.86x = 98,777.55 × 28,413.98
4. Step 4: Simplify right side
   65,871.86x = 2,806,663,330.15
5. Step 5: Solve for x
   x = 2,806,663,330.15/65,871.86
6. Step 6: Final answer
   x = 42,607.93