Finding the Fourth Proportional to 12,464.74, 17,196.33 and 8,740.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,464.74 : 17,196.33 = 8,740.90 : x
2. Step 2: Convert to fraction form
   12,464.74/17,196.33 = 8,740.90/x
3. Step 3: Cross multiply
   12,464.74x = 17,196.33 × 8,740.90
4. Step 4: Simplify right side
   12,464.74x = 150,311,400.90
5. Step 5: Solve for x
   x = 150,311,400.90/12,464.74
6. Step 6: Final answer
   x = 12,058.93