Finding the Fourth Proportional to 50,047.28, 69,062.96 and 28,829.60

Step by Step Solution

1. Step 1: Write the proportion equation
   50,047.28 : 69,062.96 = 28,829.60 : x
2. Step 2: Convert to fraction form
   50,047.28/69,062.96 = 28,829.60/x
3. Step 3: Cross multiply
   50,047.28x = 69,062.96 × 28,829.60
4. Step 4: Simplify right side
   50,047.28x = 1,991,057,511.62
5. Step 5: Solve for x
   x = 1,991,057,511.62/50,047.28
6. Step 6: Final answer
   x = 39,783.53