Finding the Fourth Proportional to 50,971.25, 70,340.33 and 28,615.25

Step by Step Solution

1. Step 1: Write the proportion equation
   50,971.25 : 70,340.33 = 28,615.25 : x
2. Step 2: Convert to fraction form
   50,971.25/70,340.33 = 28,615.25/x
3. Step 3: Cross multiply
   50,971.25x = 70,340.33 × 28,615.25
4. Step 4: Simplify right side
   50,971.25x = 2,012,805,984.96
5. Step 5: Solve for x
   x = 2,012,805,984.96/50,971.25
6. Step 6: Final answer
   x = 39,489.05