Finding the Fourth Proportional to 143,937.46, 215,906.14 and 50,443.21

Step by Step Solution

1. Step 1: Write the proportion equation
   143,937.46 : 215,906.14 = 50,443.21 : x
2. Step 2: Convert to fraction form
   143,937.46/215,906.14 = 50,443.21/x
3. Step 3: Cross multiply
   143,937.46x = 215,906.14 × 50,443.21
4. Step 4: Simplify right side
   143,937.46x = 10,890,998,760.31
5. Step 5: Solve for x
   x = 10,890,998,760.31/143,937.46
6. Step 6: Final answer
   x = 75,664.80