Finding the Fourth Proportional to 10,993.73, 16,487.15 and 3,972.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,993.73 : 16,487.15 = 3,972.81 : x
2. Step 2: Convert to fraction form
   10,993.73/16,487.15 = 3,972.81/x
3. Step 3: Cross multiply
   10,993.73x = 16,487.15 × 3,972.81
4. Step 4: Simplify right side
   10,993.73x = 65,500,356.35
5. Step 5: Solve for x
   x = 65,500,356.35/10,993.73
6. Step 6: Final answer
   x = 5,957.98