Finding the Fourth Proportional to 23,978.16, 33,089.85 and 13,368.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,978.16 : 33,089.85 = 13,368.48 : x
2. Step 2: Convert to fraction form
   23,978.16/33,089.85 = 13,368.48/x
3. Step 3: Cross multiply
   23,978.16x = 33,089.85 × 13,368.48
4. Step 4: Simplify right side
   23,978.16x = 442,360,997.93
5. Step 5: Solve for x
   x = 442,360,997.93/23,978.16
6. Step 6: Final answer
   x = 18,448.50