Finding the Fourth Proportional to 16,312.34, 22,512.59 and 9,142.22

Step by Step Solution

1. Step 1: Write the proportion equation
   16,312.34 : 22,512.59 = 9,142.22 : x
2. Step 2: Convert to fraction form
   16,312.34/22,512.59 = 9,142.22/x
3. Step 3: Cross multiply
   16,312.34x = 22,512.59 × 9,142.22
4. Step 4: Simplify right side
   16,312.34x = 205,815,104.62
5. Step 5: Solve for x
   x = 205,815,104.62/16,312.34
6. Step 6: Final answer
   x = 12,617.14