Finding the Fourth Proportional to 16,219.61, 22,383.02 and 9,145.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,219.61 : 22,383.02 = 9,145.98 : x
2. Step 2: Convert to fraction form
   16,219.61/22,383.02 = 9,145.98/x
3. Step 3: Cross multiply
   16,219.61x = 22,383.02 × 9,145.98
4. Step 4: Simplify right side
   16,219.61x = 204,714,495.61
5. Step 5: Solve for x
   x = 204,714,495.61/16,219.61
6. Step 6: Final answer
   x = 12,621.42