Finding the Fourth Proportional to 16,597.15, 22,904.07 and 9,145.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,597.15 : 22,904.07 = 9,145.15 : x
2. Step 2: Convert to fraction form
   16,597.15/22,904.07 = 9,145.15/x
3. Step 3: Cross multiply
   16,597.15x = 22,904.07 × 9,145.15
4. Step 4: Simplify right side
   16,597.15x = 209,461,155.76
5. Step 5: Solve for x
   x = 209,461,155.76/16,597.15
6. Step 6: Final answer
   x = 12,620.31