Finding the Fourth Proportional to 50,080.80, 69,136.56 and 31,228.32

Step by Step Solution

1. Step 1: Write the proportion equation
   50,080.80 : 69,136.56 = 31,228.32 : x
2. Step 2: Convert to fraction form
   50,080.80/69,136.56 = 31,228.32/x
3. Step 3: Cross multiply
   50,080.80x = 69,136.56 × 31,228.32
4. Step 4: Simplify right side
   50,080.80x = 2,159,018,619.38
5. Step 5: Solve for x
   x = 2,159,018,619.38/50,080.80
6. Step 6: Final answer
   x = 43,110.71