Finding the Fourth Proportional to 16,162.40, 22,300.12 and 9,872.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,162.40 : 22,300.12 = 9,872.48 : x
2. Step 2: Convert to fraction form
   16,162.40/22,300.12 = 9,872.48/x
3. Step 3: Cross multiply
   16,162.40x = 22,300.12 × 9,872.48
4. Step 4: Simplify right side
   16,162.40x = 220,157,488.70
5. Step 5: Solve for x
   x = 220,157,488.70/16,162.40
6. Step 6: Final answer
   x = 13,621.58