Finding the Fourth Proportional to 85,936.82, 118,585.05 and 50,129.96

Step by Step Solution

1. Step 1: Write the proportion equation
   85,936.82 : 118,585.05 = 50,129.96 : x
2. Step 2: Convert to fraction form
   85,936.82/118,585.05 = 50,129.96/x
3. Step 3: Cross multiply
   85,936.82x = 118,585.05 × 50,129.96
4. Step 4: Simplify right side
   85,936.82x = 5,944,663,813.10
5. Step 5: Solve for x
   x = 5,944,663,813.10/85,936.82
6. Step 6: Final answer
   x = 69,174.82