Finding the Fourth Proportional to 50,078.31, 69,111.90 and 28,568.53

Step by Step Solution

1. Step 1: Write the proportion equation
   50,078.31 : 69,111.90 = 28,568.53 : x
2. Step 2: Convert to fraction form
   50,078.31/69,111.90 = 28,568.53/x
3. Step 3: Cross multiply
   50,078.31x = 69,111.90 × 28,568.53
4. Step 4: Simplify right side
   50,078.31x = 1,974,424,900.10
5. Step 5: Solve for x
   x = 1,974,424,900.10/50,078.31
6. Step 6: Final answer
   x = 39,426.75