Finding the Fourth Proportional to 143,781.84, 215,768.75 and 50,287.59

Step by Step Solution

1. Step 1: Write the proportion equation
   143,781.84 : 215,768.75 = 50,287.59 : x
2. Step 2: Convert to fraction form
   143,781.84/215,768.75 = 50,287.59/x
3. Step 3: Cross multiply
   143,781.84x = 215,768.75 × 50,287.59
4. Step 4: Simplify right side
   143,781.84x = 10,850,490,183.37
5. Step 5: Solve for x
   x = 10,850,490,183.37/143,781.84
6. Step 6: Final answer
   x = 75,464.96