Finding the Fourth Proportional to 50,661.72, 69,880.32 and 30,504.06

Step by Step Solution

1. Step 1: Write the proportion equation
   50,661.72 : 69,880.32 = 30,504.06 : x
2. Step 2: Convert to fraction form
   50,661.72/69,880.32 = 30,504.06/x
3. Step 3: Cross multiply
   50,661.72x = 69,880.32 × 30,504.06
4. Step 4: Simplify right side
   50,661.72x = 2,131,633,474.10
5. Step 5: Solve for x
   x = 2,131,633,474.10/50,661.72
6. Step 6: Final answer
   x = 42,075.82