Finding the Fourth Proportional to 143,669.28, 215,406.72 and 50,124

Step by Step Solution

1. Step 1: Write the proportion equation
   143,669.28 : 215,406.72 = 50,124 : x
2. Step 2: Convert to fraction form
   143,669.28/215,406.72 = 50,124/x
3. Step 3: Cross multiply
   143,669.28x = 215,406.72 × 50,124
4. Step 4: Simplify right side
   143,669.28x = 10,797,046,433.28
5. Step 5: Solve for x
   x = 10,797,046,433.28/143,669.28
6. Step 6: Final answer
   x = 75,152.09