Finding the Fourth Proportional to 17,109.78, 23,609.40 and 9,556.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.78 : 23,609.40 = 9,556.52 : x
2. Step 2: Convert to fraction form
   17,109.78/23,609.40 = 9,556.52/x
3. Step 3: Cross multiply
   17,109.78x = 23,609.40 × 9,556.52
4. Step 4: Simplify right side
   17,109.78x = 225,623,703.29
5. Step 5: Solve for x
   x = 225,623,703.29/17,109.78
6. Step 6: Final answer
   x = 13,186.83