Finding the Fourth Proportional to 33,081.93, 45,657 and 18,939.33

Step by Step Solution

1. Step 1: Write the proportion equation
   33,081.93 : 45,657 = 18,939.33 : x
2. Step 2: Convert to fraction form
   33,081.93/45,657 = 18,939.33/x
3. Step 3: Cross multiply
   33,081.93x = 45,657 × 18,939.33
4. Step 4: Simplify right side
   33,081.93x = 864,712,989.81
5. Step 5: Solve for x
   x = 864,712,989.81/33,081.93
6. Step 6: Final answer
   x = 26,138.53