Finding the Fourth Proportional to 14,364.80, 21,544.72 and 3,974.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,364.80 : 21,544.72 = 3,974.12 : x
2. Step 2: Convert to fraction form
   14,364.80/21,544.72 = 3,974.12/x
3. Step 3: Cross multiply
   14,364.80x = 21,544.72 × 3,974.12
4. Step 4: Simplify right side
   14,364.80x = 85,621,302.65
5. Step 5: Solve for x
   x = 85,621,302.65/14,364.80
6. Step 6: Final answer
   x = 5,960.49