Finding the Fourth Proportional to 23,388.36, 35,088.72 and 12,291.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,388.36 : 35,088.72 = 12,291.96 : x
2. Step 2: Convert to fraction form
   23,388.36/35,088.72 = 12,291.96/x
3. Step 3: Cross multiply
   23,388.36x = 35,088.72 × 12,291.96
4. Step 4: Simplify right side
   23,388.36x = 431,309,142.69
5. Step 5: Solve for x
   x = 431,309,142.69/23,388.36
6. Step 6: Final answer
   x = 18,441.19