Finding the Fourth Proportional to 50,467.50, 69,645.18 and 28,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,467.50 : 69,645.18 = 28,111.50 : x
2. Step 2: Convert to fraction form
   50,467.50/69,645.18 = 28,111.50/x
3. Step 3: Cross multiply
   50,467.50x = 69,645.18 × 28,111.50
4. Step 4: Simplify right side
   50,467.50x = 1,957,830,477.57
5. Step 5: Solve for x
   x = 1,957,830,477.57/50,467.50
6. Step 6: Final answer
   x = 38,793.89