Finding the Fourth Proportional to 50,285.28, 69,426.15 and 31,185.36

Step by Step Solution

1. Step 1: Write the proportion equation
   50,285.28 : 69,426.15 = 31,185.36 : x
2. Step 2: Convert to fraction form
   50,285.28/69,426.15 = 31,185.36/x
3. Step 3: Cross multiply
   50,285.28x = 69,426.15 × 31,185.36
4. Step 4: Simplify right side
   50,285.28x = 2,165,079,481.16
5. Step 5: Solve for x
   x = 2,165,079,481.16/50,285.28
6. Step 6: Final answer
   x = 43,055.93