Finding the Fourth Proportional to 23,804.94, 35,728.83 and 12,721.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,804.94 : 35,728.83 = 12,721.10 : x
2. Step 2: Convert to fraction form
   23,804.94/35,728.83 = 12,721.10/x
3. Step 3: Cross multiply
   23,804.94x = 35,728.83 × 12,721.10
4. Step 4: Simplify right side
   23,804.94x = 454,510,019.31
5. Step 5: Solve for x
   x = 454,510,019.31/23,804.94
6. Step 6: Final answer
   x = 19,093.10