Finding the Fourth Proportional to 50,520.50, 69,720.46 and 28,164.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,520.50 : 69,720.46 = 28,164.50 : x
2. Step 2: Convert to fraction form
   50,520.50/69,720.46 = 28,164.50/x
3. Step 3: Cross multiply
   50,520.50x = 69,720.46 × 28,164.50
4. Step 4: Simplify right side
   50,520.50x = 1,963,641,895.67
5. Step 5: Solve for x
   x = 1,963,641,895.67/50,520.50
6. Step 6: Final answer
   x = 38,868.22