Finding the Fourth Proportional to 50,087.70, 69,111.09 and 28,576.89

Step by Step Solution

1. Step 1: Write the proportion equation
   50,087.70 : 69,111.09 = 28,576.89 : x
2. Step 2: Convert to fraction form
   50,087.70/69,111.09 = 28,576.89/x
3. Step 3: Cross multiply
   50,087.70x = 69,111.09 × 28,576.89
4. Step 4: Simplify right side
   50,087.70x = 1,974,980,016.71
5. Step 5: Solve for x
   x = 1,974,980,016.71/50,087.70
6. Step 6: Final answer
   x = 39,430.44