Finding the Fourth Proportional to 143,804.56, 215,804.04 and 50,311.12

Step by Step Solution

1. Step 1: Write the proportion equation
   143,804.56 : 215,804.04 = 50,311.12 : x
2. Step 2: Convert to fraction form
   143,804.56/215,804.04 = 50,311.12/x
3. Step 3: Cross multiply
   143,804.56x = 215,804.04 × 50,311.12
4. Step 4: Simplify right side
   143,804.56x = 10,857,342,952.92
5. Step 5: Solve for x
   x = 10,857,342,952.92/143,804.56
6. Step 6: Final answer
   x = 75,500.69