Finding the Fourth Proportional to 121,617.56, 182,413.50 and 57,560.36

Step by Step Solution

1. Step 1: Write the proportion equation
   121,617.56 : 182,413.50 = 57,560.36 : x
2. Step 2: Convert to fraction form
   121,617.56/182,413.50 = 57,560.36/x
3. Step 3: Cross multiply
   121,617.56x = 182,413.50 × 57,560.36
4. Step 4: Simplify right side
   121,617.56x = 10,499,786,728.86
5. Step 5: Solve for x
   x = 10,499,786,728.86/121,617.56
6. Step 6: Final answer
   x = 86,334.46