Finding the Fourth Proportional to 13,834.86, 20,751.75 and 3,974.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.86 : 20,751.75 = 3,974.10 : x
2. Step 2: Convert to fraction form
   13,834.86/20,751.75 = 3,974.10/x
3. Step 3: Cross multiply
   13,834.86x = 20,751.75 × 3,974.10
4. Step 4: Simplify right side
   13,834.86x = 82,469,529.68
5. Step 5: Solve for x
   x = 82,469,529.68/13,834.86
6. Step 6: Final answer
   x = 5,960.99