Finding the Fourth Proportional to 12,196.77, 18,309.69 and 7,268.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.77 : 18,309.69 = 7,268.73 : x
2. Step 2: Convert to fraction form
   12,196.77/18,309.69 = 7,268.73/x
3. Step 3: Cross multiply
   12,196.77x = 18,309.69 × 7,268.73
4. Step 4: Simplify right side
   12,196.77x = 133,088,192.99
5. Step 5: Solve for x
   x = 133,088,192.99/12,196.77
6. Step 6: Final answer
   x = 10,911.76