Finding the Fourth Proportional to 143,485.82, 215,257.89 and 50,057.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,485.82 : 215,257.89 = 50,057.18 : x
2. Step 2: Convert to fraction form
   143,485.82/215,257.89 = 50,057.18/x
3. Step 3: Cross multiply
   143,485.82x = 215,257.89 × 50,057.18
4. Step 4: Simplify right side
   143,485.82x = 10,775,202,946.15
5. Step 5: Solve for x
   x = 10,775,202,946.15/143,485.82
6. Step 6: Final answer
   x = 75,095.94