Finding the Fourth Proportional to 17,918.67, 24,728.61 and 9,961.03

Step by Step Solution

1. Step 1: Write the proportion equation
   17,918.67 : 24,728.61 = 9,961.03 : x
2. Step 2: Convert to fraction form
   17,918.67/24,728.61 = 9,961.03/x
3. Step 3: Cross multiply
   17,918.67x = 24,728.61 × 9,961.03
4. Step 4: Simplify right side
   17,918.67x = 246,322,494.33
5. Step 5: Solve for x
   x = 246,322,494.33/17,918.67
6. Step 6: Final answer
   x = 13,746.69