Finding the Fourth Proportional to 50,159.57, 69,221.49 and 28,354.09

Step by Step Solution

1. Step 1: Write the proportion equation
   50,159.57 : 69,221.49 = 28,354.09 : x
2. Step 2: Convert to fraction form
   50,159.57/69,221.49 = 28,354.09/x
3. Step 3: Cross multiply
   50,159.57x = 69,221.49 × 28,354.09
4. Step 4: Simplify right side
   50,159.57x = 1,962,712,357.39
5. Step 5: Solve for x
   x = 1,962,712,357.39/50,159.57
6. Step 6: Final answer
   x = 39,129.37