Finding the Fourth Proportional to 50,723.86, 69,976.92 and 30,569.29

Step by Step Solution

1. Step 1: Write the proportion equation
   50,723.86 : 69,976.92 = 30,569.29 : x
2. Step 2: Convert to fraction form
   50,723.86/69,976.92 = 30,569.29/x
3. Step 3: Cross multiply
   50,723.86x = 69,976.92 × 30,569.29
4. Step 4: Simplify right side
   50,723.86x = 2,139,144,760.79
5. Step 5: Solve for x
   x = 2,139,144,760.79/50,723.86
6. Step 6: Final answer
   x = 42,172.36