Finding the Fourth Proportional to 33,090.89, 49,645.61 and 13,383.29

Step by Step Solution

1. Step 1: Write the proportion equation
   33,090.89 : 49,645.61 = 13,383.29 : x
2. Step 2: Convert to fraction form
   33,090.89/49,645.61 = 13,383.29/x
3. Step 3: Cross multiply
   33,090.89x = 49,645.61 × 13,383.29
4. Step 4: Simplify right side
   33,090.89x = 664,421,753.43
5. Step 5: Solve for x
   x = 664,421,753.43/33,090.89
6. Step 6: Final answer
   x = 20,078.69