Finding the Fourth Proportional to 50,727.72, 69,971.04 and 30,570.96

Step by Step Solution

1. Step 1: Write the proportion equation
   50,727.72 : 69,971.04 = 30,570.96 : x
2. Step 2: Convert to fraction form
   50,727.72/69,971.04 = 30,570.96/x
3. Step 3: Cross multiply
   50,727.72x = 69,971.04 × 30,570.96
4. Step 4: Simplify right side
   50,727.72x = 2,139,081,865.00
5. Step 5: Solve for x
   x = 2,139,081,865.00/50,727.72
6. Step 6: Final answer
   x = 42,167.91