Finding the Fourth Proportional to 50,081.22, 69,107.58 and 28,857.60

Step by Step Solution

1. Step 1: Write the proportion equation
   50,081.22 : 69,107.58 = 28,857.60 : x
2. Step 2: Convert to fraction form
   50,081.22/69,107.58 = 28,857.60/x
3. Step 3: Cross multiply
   50,081.22x = 69,107.58 × 28,857.60
4. Step 4: Simplify right side
   50,081.22x = 1,994,278,900.61
5. Step 5: Solve for x
   x = 1,994,278,900.61/50,081.22
6. Step 6: Final answer
   x = 39,820.89