Finding the Fourth Proportional to 50,128.49, 69,176.20 and 28,322.73

Step by Step Solution

1. Step 1: Write the proportion equation
   50,128.49 : 69,176.20 = 28,322.73 : x
2. Step 2: Convert to fraction form
   50,128.49/69,176.20 = 28,322.73/x
3. Step 3: Cross multiply
   50,128.49x = 69,176.20 × 28,322.73
4. Step 4: Simplify right side
   50,128.49x = 1,959,258,835.03
5. Step 5: Solve for x
   x = 1,959,258,835.03/50,128.49
6. Step 6: Final answer
   x = 39,084.74