Finding the Fourth Proportional to 17,013.50, 23,478.56 and 9,459.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,013.50 : 23,478.56 = 9,459.60 : x
2. Step 2: Convert to fraction form
   17,013.50/23,478.56 = 9,459.60/x
3. Step 3: Cross multiply
   17,013.50x = 23,478.56 × 9,459.60
4. Step 4: Simplify right side
   17,013.50x = 222,097,786.18
5. Step 5: Solve for x
   x = 222,097,786.18/17,013.50
6. Step 6: Final answer
   x = 13,054.21