Finding the Fourth Proportional to 12,469.46, 17,205.49 and 7,434.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,469.46 : 17,205.49 = 7,434.15 : x
2. Step 2: Convert to fraction form
   12,469.46/17,205.49 = 7,434.15/x
3. Step 3: Cross multiply
   12,469.46x = 17,205.49 × 7,434.15
4. Step 4: Simplify right side
   12,469.46x = 127,908,174.90
5. Step 5: Solve for x
   x = 127,908,174.90/12,469.46
6. Step 6: Final answer
   x = 10,257.71