Finding the Fourth Proportional to 33,388.12, 50,066.34 and 12,321.28

Step by Step Solution

1. Step 1: Write the proportion equation
   33,388.12 : 50,066.34 = 12,321.28 : x
2. Step 2: Convert to fraction form
   33,388.12/50,066.34 = 12,321.28/x
3. Step 3: Cross multiply
   33,388.12x = 50,066.34 × 12,321.28
4. Step 4: Simplify right side
   33,388.12x = 616,881,393.72
5. Step 5: Solve for x
   x = 616,881,393.72/33,388.12
6. Step 6: Final answer
   x = 18,476.07