Finding the Fourth Proportional to 143,881.38, 215,690.58 and 50,336.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,881.38 : 215,690.58 = 50,336.10 : x
2. Step 2: Convert to fraction form
   143,881.38/215,690.58 = 50,336.10/x
3. Step 3: Cross multiply
   143,881.38x = 215,690.58 × 50,336.10
4. Step 4: Simplify right side
   143,881.38x = 10,857,022,603.94
5. Step 5: Solve for x
   x = 10,857,022,603.94/143,881.38
6. Step 6: Final answer
   x = 75,458.15