Finding the Fourth Proportional to 17,012.65, 23,478.77 and 9,459.61

Step by Step Solution

1. Step 1: Write the proportion equation
   17,012.65 : 23,478.77 = 9,459.61 : x
2. Step 2: Convert to fraction form
   17,012.65/23,478.77 = 9,459.61/x
3. Step 3: Cross multiply
   17,012.65x = 23,478.77 × 9,459.61
4. Step 4: Simplify right side
   17,012.65x = 222,100,007.48
5. Step 5: Solve for x
   x = 222,100,007.48/17,012.65
6. Step 6: Final answer
   x = 13,054.99