Finding the Fourth Proportional to 143,580.54, 215,469.36 and 50,086.30

Step by Step Solution

1. Step 1: Write the proportion equation
   143,580.54 : 215,469.36 = 50,086.30 : x
2. Step 2: Convert to fraction form
   143,580.54/215,469.36 = 50,086.30/x
3. Step 3: Cross multiply
   143,580.54x = 215,469.36 × 50,086.30
4. Step 4: Simplify right side
   143,580.54x = 10,792,063,005.77
5. Step 5: Solve for x
   x = 10,792,063,005.77/143,580.54
6. Step 6: Final answer
   x = 75,163.83