Finding the Fourth Proportional to 50,254.74, 69,329.34 and 31,129.47

Step by Step Solution

1. Step 1: Write the proportion equation
   50,254.74 : 69,329.34 = 31,129.47 : x
2. Step 2: Convert to fraction form
   50,254.74/69,329.34 = 31,129.47/x
3. Step 3: Cross multiply
   50,254.74x = 69,329.34 × 31,129.47
4. Step 4: Simplify right side
   50,254.74x = 2,158,185,609.65
5. Step 5: Solve for x
   x = 2,158,185,609.65/50,254.74
6. Step 6: Final answer
   x = 42,944.92