Finding the Fourth Proportional to 50,321.69, 69,421.08 and 31,196.37

Step by Step Solution

1. Step 1: Write the proportion equation
   50,321.69 : 69,421.08 = 31,196.37 : x
2. Step 2: Convert to fraction form
   50,321.69/69,421.08 = 31,196.37/x
3. Step 3: Cross multiply
   50,321.69x = 69,421.08 × 31,196.37
4. Step 4: Simplify right side
   50,321.69x = 2,165,686,074.80
5. Step 5: Solve for x
   x = 2,165,686,074.80/50,321.69
6. Step 6: Final answer
   x = 43,036.83