Finding the Fourth Proportional to 17,406, 24,020 and 10,236.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,406 : 24,020 = 10,236.72 : x
2. Step 2: Convert to fraction form
   17,406/24,020 = 10,236.72/x
3. Step 3: Cross multiply
   17,406x = 24,020 × 10,236.72
4. Step 4: Simplify right side
   17,406x = 245,886,014.40
5. Step 5: Solve for x
   x = 245,886,014.40/17,406
6. Step 6: Final answer
   x = 14,126.51