Finding the Fourth Proportional to 12,103.09, 18,144.61 and 4,605.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.09 : 18,144.61 = 4,605.09 : x
2. Step 2: Convert to fraction form
   12,103.09/18,144.61 = 4,605.09/x
3. Step 3: Cross multiply
   12,103.09x = 18,144.61 × 4,605.09
4. Step 4: Simplify right side
   12,103.09x = 83,557,562.06
5. Step 5: Solve for x
   x = 83,557,562.06/12,103.09
6. Step 6: Final answer
   x = 6,903.82