Finding the Fourth Proportional to 17,109.86, 23,611.37 and 9,556.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.86 : 23,611.37 = 9,556.31 : x
2. Step 2: Convert to fraction form
   17,109.86/23,611.37 = 9,556.31/x
3. Step 3: Cross multiply
   17,109.86x = 23,611.37 × 9,556.31
4. Step 4: Simplify right side
   17,109.86x = 225,637,582.49
5. Step 5: Solve for x
   x = 225,637,582.49/17,109.86
6. Step 6: Final answer
   x = 13,187.58