Finding the Fourth Proportional to 50,016.12, 69,020.01 and 28,790.88

Step by Step Solution

1. Step 1: Write the proportion equation
   50,016.12 : 69,020.01 = 28,790.88 : x
2. Step 2: Convert to fraction form
   50,016.12/69,020.01 = 28,790.88/x
3. Step 3: Cross multiply
   50,016.12x = 69,020.01 × 28,790.88
4. Step 4: Simplify right side
   50,016.12x = 1,987,146,825.51
5. Step 5: Solve for x
   x = 1,987,146,825.51/50,016.12
6. Step 6: Final answer
   x = 39,730.13