Finding the Fourth Proportional to 14,262.48, 19,683 and 7,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,262.48 : 19,683 = 7,974.72 : x
2. Step 2: Convert to fraction form
   14,262.48/19,683 = 7,974.72/x
3. Step 3: Cross multiply
   14,262.48x = 19,683 × 7,974.72
4. Step 4: Simplify right side
   14,262.48x = 156,966,413.76
5. Step 5: Solve for x
   x = 156,966,413.76/14,262.48
6. Step 6: Final answer
   x = 11,005.55