Finding the Fourth Proportional to 17,188.94, 23,721.39 and 9,635.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,188.94 : 23,721.39 = 9,635.31 : x
2. Step 2: Convert to fraction form
   17,188.94/23,721.39 = 9,635.31/x
3. Step 3: Cross multiply
   17,188.94x = 23,721.39 × 9,635.31
4. Step 4: Simplify right side
   17,188.94x = 228,562,946.28
5. Step 5: Solve for x
   x = 228,562,946.28/17,188.94
6. Step 6: Final answer
   x = 13,297.09