Finding the Fourth Proportional to 42,449.72, 63,673.86 and 14,747

Step by Step Solution

1. Step 1: Write the proportion equation
   42,449.72 : 63,673.86 = 14,747 : x
2. Step 2: Convert to fraction form
   42,449.72/63,673.86 = 14,747/x
3. Step 3: Cross multiply
   42,449.72x = 63,673.86 × 14,747
4. Step 4: Simplify right side
   42,449.72x = 938,998,413.42
5. Step 5: Solve for x
   x = 938,998,413.42/42,449.72
6. Step 6: Final answer
   x = 22,120.25