Finding the Fourth Proportional to 89,812.37, 134,645.49 and 33,621

Step by Step Solution

1. Step 1: Write the proportion equation
   89,812.37 : 134,645.49 = 33,621 : x
2. Step 2: Convert to fraction form
   89,812.37/134,645.49 = 33,621/x
3. Step 3: Cross multiply
   89,812.37x = 134,645.49 × 33,621
4. Step 4: Simplify right side
   89,812.37x = 4,526,916,019.29
5. Step 5: Solve for x
   x = 4,526,916,019.29/89,812.37
6. Step 6: Final answer
   x = 50,404.15