Finding the Fourth Proportional to 12,440.75, 17,167.10 and 7,404.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,440.75 : 17,167.10 = 7,404.16 : x
2. Step 2: Convert to fraction form
   12,440.75/17,167.10 = 7,404.16/x
3. Step 3: Cross multiply
   12,440.75x = 17,167.10 × 7,404.16
4. Step 4: Simplify right side
   12,440.75x = 127,107,930.73
5. Step 5: Solve for x
   x = 127,107,930.73/12,440.75
6. Step 6: Final answer
   x = 10,217.06