Finding the Fourth Proportional to 12,436.67, 17,178.01 and 9,028.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.67 : 17,178.01 = 9,028.24 : x
2. Step 2: Convert to fraction form
   12,436.67/17,178.01 = 9,028.24/x
3. Step 3: Cross multiply
   12,436.67x = 17,178.01 × 9,028.24
4. Step 4: Simplify right side
   12,436.67x = 155,087,131.49
5. Step 5: Solve for x
   x = 155,087,131.49/12,436.67
6. Step 6: Final answer
   x = 12,470.15