Finding the Fourth Proportional to 21,413.41, 29,559 and 14,516.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,413.41 : 29,559 = 14,516.15 : x
2. Step 2: Convert to fraction form
   21,413.41/29,559 = 14,516.15/x
3. Step 3: Cross multiply
   21,413.41x = 29,559 × 14,516.15
4. Step 4: Simplify right side
   21,413.41x = 429,082,951.75
5. Step 5: Solve for x
   x = 429,082,951.75/21,413.41
6. Step 6: Final answer
   x = 20,038.05