Finding the Fourth Proportional to 10,981.54, 16,474.35 and 3,866.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.54 : 16,474.35 = 3,866.50 : x
2. Step 2: Convert to fraction form
   10,981.54/16,474.35 = 3,866.50/x
3. Step 3: Cross multiply
   10,981.54x = 16,474.35 × 3,866.50
4. Step 4: Simplify right side
   10,981.54x = 63,697,991.90
5. Step 5: Solve for x
   x = 63,697,991.90/10,981.54
6. Step 6: Final answer
   x = 5,800.46