Finding the Fourth Proportional to 16,570.50, 22,867.29 and 9,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,570.50 : 22,867.29 = 9,118.50 : x
2. Step 2: Convert to fraction form
   16,570.50/22,867.29 = 9,118.50/x
3. Step 3: Cross multiply
   16,570.50x = 22,867.29 × 9,118.50
4. Step 4: Simplify right side
   16,570.50x = 208,515,383.87
5. Step 5: Solve for x
   x = 208,515,383.87/16,570.50
6. Step 6: Final answer
   x = 12,583.53