Finding the Fourth Proportional to 50,518.50, 69,717.69 and 28,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,518.50 : 69,717.69 = 28,162.50 : x
2. Step 2: Convert to fraction form
   50,518.50/69,717.69 = 28,162.50/x
3. Step 3: Cross multiply
   50,518.50x = 69,717.69 × 28,162.50
4. Step 4: Simplify right side
   50,518.50x = 1,963,424,444.63
5. Step 5: Solve for x
   x = 1,963,424,444.63/50,518.50
6. Step 6: Final answer
   x = 38,865.45