Finding the Fourth Proportional to 16,598.72, 22,904.88 and 9,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,598.72 : 22,904.88 = 9,146.72 : x
2. Step 2: Convert to fraction form
   16,598.72/22,904.88 = 9,146.72/x
3. Step 3: Cross multiply
   16,598.72x = 22,904.88 × 9,146.72
4. Step 4: Simplify right side
   16,598.72x = 209,504,523.99
5. Step 5: Solve for x
   x = 209,504,523.99/16,598.72
6. Step 6: Final answer
   x = 12,621.73