Finding the Fourth Proportional to 50,447.50, 69,619.71 and 28,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,447.50 : 69,619.71 = 28,091.50 : x
2. Step 2: Convert to fraction form
   50,447.50/69,619.71 = 28,091.50/x
3. Step 3: Cross multiply
   50,447.50x = 69,619.71 × 28,091.50
4. Step 4: Simplify right side
   50,447.50x = 1,955,722,083.47
5. Step 5: Solve for x
   x = 1,955,722,083.47/50,447.50
6. Step 6: Final answer
   x = 38,767.47