Finding the Fourth Proportional to 55,413.52, 83,119.72 and 13,860.52

Step by Step Solution

1. Step 1: Write the proportion equation
   55,413.52 : 83,119.72 = 13,860.52 : x
2. Step 2: Convert to fraction form
   55,413.52/83,119.72 = 13,860.52/x
3. Step 3: Cross multiply
   55,413.52x = 83,119.72 × 13,860.52
4. Step 4: Simplify right side
   55,413.52x = 1,152,082,541.45
5. Step 5: Solve for x
   x = 1,152,082,541.45/55,413.52
6. Step 6: Final answer
   x = 20,790.64