Finding the Fourth Proportional to 33,086.09, 45,640.33 and 20,330.42

Step by Step Solution

1. Step 1: Write the proportion equation
   33,086.09 : 45,640.33 = 20,330.42 : x
2. Step 2: Convert to fraction form
   33,086.09/45,640.33 = 20,330.42/x
3. Step 3: Cross multiply
   33,086.09x = 45,640.33 × 20,330.42
4. Step 4: Simplify right side
   33,086.09x = 927,886,798.81
5. Step 5: Solve for x
   x = 927,886,798.81/33,086.09
6. Step 6: Final answer
   x = 28,044.62