Finding the Fourth Proportional to 12,409.36, 17,074.86 and 12,114.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,409.36 : 17,074.86 = 12,114.10 : x
2. Step 2: Convert to fraction form
   12,409.36/17,074.86 = 12,114.10/x
3. Step 3: Cross multiply
   12,409.36x = 17,074.86 × 12,114.10
4. Step 4: Simplify right side
   12,409.36x = 206,846,561.53
5. Step 5: Solve for x
   x = 206,846,561.53/12,409.36
6. Step 6: Final answer
   x = 16,668.59