Finding the Fourth Proportional to 50,877.50, 70,210.95 and 28,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,877.50 : 70,210.95 = 28,521.50 : x
2. Step 2: Convert to fraction form
   50,877.50/70,210.95 = 28,521.50/x
3. Step 3: Cross multiply
   50,877.50x = 70,210.95 × 28,521.50
4. Step 4: Simplify right side
   50,877.50x = 2,002,521,610.43
5. Step 5: Solve for x
   x = 2,002,521,610.43/50,877.50
6. Step 6: Final answer
   x = 39,359.67