Finding the Fourth Proportional to 50,435.16, 69,647.76 and 31,605.09

Step by Step Solution

1. Step 1: Write the proportion equation
   50,435.16 : 69,647.76 = 31,605.09 : x
2. Step 2: Convert to fraction form
   50,435.16/69,647.76 = 31,605.09/x
3. Step 3: Cross multiply
   50,435.16x = 69,647.76 × 31,605.09
4. Step 4: Simplify right side
   50,435.16x = 2,201,223,723.10
5. Step 5: Solve for x
   x = 2,201,223,723.10/50,435.16
6. Step 6: Final answer
   x = 43,644.63