Finding the Fourth Proportional to 50,345.98, 69,504.15 and 31,489.18

Step by Step Solution

1. Step 1: Write the proportion equation
   50,345.98 : 69,504.15 = 31,489.18 : x
2. Step 2: Convert to fraction form
   50,345.98/69,504.15 = 31,489.18/x
3. Step 3: Cross multiply
   50,345.98x = 69,504.15 × 31,489.18
4. Step 4: Simplify right side
   50,345.98x = 2,188,628,690.10
5. Step 5: Solve for x
   x = 2,188,628,690.10/50,345.98
6. Step 6: Final answer
   x = 43,471.77