Finding the Fourth Proportional to 45,413.61, 68,123.90 and 13,826.37

Step by Step Solution

1. Step 1: Write the proportion equation
   45,413.61 : 68,123.90 = 13,826.37 : x
2. Step 2: Convert to fraction form
   45,413.61/68,123.90 = 13,826.37/x
3. Step 3: Cross multiply
   45,413.61x = 68,123.90 × 13,826.37
4. Step 4: Simplify right side
   45,413.61x = 941,906,049.92
5. Step 5: Solve for x
   x = 941,906,049.92/45,413.61
6. Step 6: Final answer
   x = 20,740.61