Finding the Fourth Proportional to 85,972.41, 118,641.86 and 50,155.49

Step by Step Solution

1. Step 1: Write the proportion equation
   85,972.41 : 118,641.86 = 50,155.49 : x
2. Step 2: Convert to fraction form
   85,972.41/118,641.86 = 50,155.49/x
3. Step 3: Cross multiply
   85,972.41x = 118,641.86 × 50,155.49
4. Step 4: Simplify right side
   85,972.41x = 5,950,539,778.82
5. Step 5: Solve for x
   x = 5,950,539,778.82/85,972.41
6. Step 6: Final answer
   x = 69,214.53