Finding the Fourth Proportional to 50,878.50, 70,212.33 and 28,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,878.50 : 70,212.33 = 28,522.50 : x
2. Step 2: Convert to fraction form
   50,878.50/70,212.33 = 28,522.50/x
3. Step 3: Cross multiply
   50,878.50x = 70,212.33 × 28,522.50
4. Step 4: Simplify right side
   50,878.50x = 2,002,631,182.43
5. Step 5: Solve for x
   x = 2,002,631,182.43/50,878.50
6. Step 6: Final answer
   x = 39,361.05