Finding the Fourth Proportional to 23,994.68, 33,112.72 and 13,385

Step by Step Solution

1. Step 1: Write the proportion equation
   23,994.68 : 33,112.72 = 13,385 : x
2. Step 2: Convert to fraction form
   23,994.68/33,112.72 = 13,385/x
3. Step 3: Cross multiply
   23,994.68x = 33,112.72 × 13,385
4. Step 4: Simplify right side
   23,994.68x = 443,213,757.20
5. Step 5: Solve for x
   x = 443,213,757.20/23,994.68
6. Step 6: Final answer
   x = 18,471.33