Finding the Fourth Proportional to 309,777.50, 464,552.71 and 107,321.31

Step by Step Solution

1. Step 1: Write the proportion equation
   309,777.50 : 464,552.71 = 107,321.31 : x
2. Step 2: Convert to fraction form
   309,777.50/464,552.71 = 107,321.31/x
3. Step 3: Cross multiply
   309,777.50x = 464,552.71 × 107,321.31
4. Step 4: Simplify right side
   309,777.50x = 49,856,405,535.40
5. Step 5: Solve for x
   x = 49,856,405,535.40/309,777.50
6. Step 6: Final answer
   x = 160,942.63