Finding the Fourth Proportional to 50,704.29, 69,977.79 and 30,571.47

Step by Step Solution

1. Step 1: Write the proportion equation
   50,704.29 : 69,977.79 = 30,571.47 : x
2. Step 2: Convert to fraction form
   50,704.29/69,977.79 = 30,571.47/x
3. Step 3: Cross multiply
   50,704.29x = 69,977.79 × 30,571.47
4. Step 4: Simplify right side
   50,704.29x = 2,139,323,907.65
5. Step 5: Solve for x
   x = 2,139,323,907.65/50,704.29
6. Step 6: Final answer
   x = 42,192.17