Finding the Fourth Proportional to 50,300.80, 69,414.76 and 27,640.03

Step by Step Solution

1. Step 1: Write the proportion equation
   50,300.80 : 69,414.76 = 27,640.03 : x
2. Step 2: Convert to fraction form
   50,300.80/69,414.76 = 27,640.03/x
3. Step 3: Cross multiply
   50,300.80x = 69,414.76 × 27,640.03
4. Step 4: Simplify right side
   50,300.80x = 1,918,626,048.84
5. Step 5: Solve for x
   x = 1,918,626,048.84/50,300.80
6. Step 6: Final answer
   x = 38,143.05