Finding the Fourth Proportional to 16,164.20, 22,297.50 and 9,702.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,164.20 : 22,297.50 = 9,702.18 : x
2. Step 2: Convert to fraction form
   16,164.20/22,297.50 = 9,702.18/x
3. Step 3: Cross multiply
   16,164.20x = 22,297.50 × 9,702.18
4. Step 4: Simplify right side
   16,164.20x = 216,334,358.55
5. Step 5: Solve for x
   x = 216,334,358.55/16,164.20
6. Step 6: Final answer
   x = 13,383.55