Finding the Fourth Proportional to 50,371.12, 69,510.72 and 28,015.12

Step by Step Solution

1. Step 1: Write the proportion equation
   50,371.12 : 69,510.72 = 28,015.12 : x
2. Step 2: Convert to fraction form
   50,371.12/69,510.72 = 28,015.12/x
3. Step 3: Cross multiply
   50,371.12x = 69,510.72 × 28,015.12
4. Step 4: Simplify right side
   50,371.12x = 1,947,351,162.09
5. Step 5: Solve for x
   x = 1,947,351,162.09/50,371.12
6. Step 6: Final answer
   x = 38,660.07