Finding the Fourth Proportional to 50,464.98, 69,636.45 and 31,080.80

Step by Step Solution

1. Step 1: Write the proportion equation
   50,464.98 : 69,636.45 = 31,080.80 : x
2. Step 2: Convert to fraction form
   50,464.98/69,636.45 = 31,080.80/x
3. Step 3: Cross multiply
   50,464.98x = 69,636.45 × 31,080.80
4. Step 4: Simplify right side
   50,464.98x = 2,164,356,429.84
5. Step 5: Solve for x
   x = 2,164,356,429.84/50,464.98
6. Step 6: Final answer
   x = 42,888.29