Finding the Fourth Proportional to 16,598.16, 22,905.72 and 9,146.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,598.16 : 22,905.72 = 9,146.16 : x
2. Step 2: Convert to fraction form
   16,598.16/22,905.72 = 9,146.16/x
3. Step 3: Cross multiply
   16,598.16x = 22,905.72 × 9,146.16
4. Step 4: Simplify right side
   16,598.16x = 209,499,380.04
5. Step 5: Solve for x
   x = 209,499,380.04/16,598.16
6. Step 6: Final answer
   x = 12,621.84