Finding the Fourth Proportional to 22,419.12, 30,936.96 and 13,467

Step by Step Solution

1. Step 1: Write the proportion equation
   22,419.12 : 30,936.96 = 13,467 : x
2. Step 2: Convert to fraction form
   22,419.12/30,936.96 = 13,467/x
3. Step 3: Cross multiply
   22,419.12x = 30,936.96 × 13,467
4. Step 4: Simplify right side
   22,419.12x = 416,628,040.32
5. Step 5: Solve for x
   x = 416,628,040.32/22,419.12
6. Step 6: Final answer
   x = 18,583.60