Finding the Fourth Proportional to 12,623.25, 18,936.69 and 3,857.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,623.25 : 18,936.69 = 3,857.02 : x
2. Step 2: Convert to fraction form
   12,623.25/18,936.69 = 3,857.02/x
3. Step 3: Cross multiply
   12,623.25x = 18,936.69 × 3,857.02
4. Step 4: Simplify right side
   12,623.25x = 73,039,192.06
5. Step 5: Solve for x
   x = 73,039,192.06/12,623.25
6. Step 6: Final answer
   x = 5,786.08