Finding the Fourth Proportional to 118,067.78, 177,143.96 and 50,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,067.78 : 177,143.96 = 50,571.50 : x
2. Step 2: Convert to fraction form
   118,067.78/177,143.96 = 50,571.50/x
3. Step 3: Cross multiply
   118,067.78x = 177,143.96 × 50,571.50
4. Step 4: Simplify right side
   118,067.78x = 8,958,434,634.56
5. Step 5: Solve for x
   x = 8,958,434,634.56/118,067.78
6. Step 6: Final answer
   x = 75,875.36