Finding the Fourth Proportional to 50,972.25, 70,341.71 and 28,616.25

Step by Step Solution

1. Step 1: Write the proportion equation
   50,972.25 : 70,341.71 = 28,616.25 : x
2. Step 2: Convert to fraction form
   50,972.25/70,341.71 = 28,616.25/x
3. Step 3: Cross multiply
   50,972.25x = 70,341.71 × 28,616.25
4. Step 4: Simplify right side
   50,972.25x = 2,012,915,958.79
5. Step 5: Solve for x
   x = 2,012,915,958.79/50,972.25
6. Step 6: Final answer
   x = 39,490.43