Finding the Fourth Proportional to 13,216.86, 18,233.91 and 9,017.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,216.86 : 18,233.91 = 9,017.82 : x
2. Step 2: Convert to fraction form
   13,216.86/18,233.91 = 9,017.82/x
3. Step 3: Cross multiply
   13,216.86x = 18,233.91 × 9,017.82
4. Step 4: Simplify right side
   13,216.86x = 164,430,118.28
5. Step 5: Solve for x
   x = 164,430,118.28/13,216.86
6. Step 6: Final answer
   x = 12,440.94