Finding the Fourth Proportional to 23,996.86, 33,118.25 and 13,390.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,996.86 : 33,118.25 = 13,390.18 : x
2. Step 2: Convert to fraction form
   23,996.86/33,118.25 = 13,390.18/x
3. Step 3: Cross multiply
   23,996.86x = 33,118.25 × 13,390.18
4. Step 4: Simplify right side
   23,996.86x = 443,459,179.04
5. Step 5: Solve for x
   x = 443,459,179.04/23,996.86
6. Step 6: Final answer
   x = 18,479.89