Finding the Fourth Proportional to 23,978.41, 33,090.20 and 13,368.73

Step by Step Solution

1. Step 1: Write the proportion equation
   23,978.41 : 33,090.20 = 13,368.73 : x
2. Step 2: Convert to fraction form
   23,978.41/33,090.20 = 13,368.73/x
3. Step 3: Cross multiply
   23,978.41x = 33,090.20 × 13,368.73
4. Step 4: Simplify right side
   23,978.41x = 442,373,949.45
5. Step 5: Solve for x
   x = 442,373,949.45/23,978.41
6. Step 6: Final answer
   x = 18,448.84