Finding the Fourth Proportional to 50,707.30, 69,981.94 and 30,574.48

Step by Step Solution

1. Step 1: Write the proportion equation
   50,707.30 : 69,981.94 = 30,574.48 : x
2. Step 2: Convert to fraction form
   50,707.30/69,981.94 = 30,574.48/x
3. Step 3: Cross multiply
   50,707.30x = 69,981.94 × 30,574.48
4. Step 4: Simplify right side
   50,707.30x = 2,139,661,424.89
5. Step 5: Solve for x
   x = 2,139,661,424.89/50,707.30
6. Step 6: Final answer
   x = 42,196.32