Finding the Fourth Proportional to 50,439, 69,605.82 and 28,088.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,439 : 69,605.82 = 28,088.28 : x
2. Step 2: Convert to fraction form
   50,439/69,605.82 = 28,088.28/x
3. Step 3: Cross multiply
   50,439x = 69,605.82 × 28,088.28
4. Step 4: Simplify right side
   50,439x = 1,955,107,761.79
5. Step 5: Solve for x
   x = 1,955,107,761.79/50,439
6. Step 6: Final answer
   x = 38,761.83