Finding the Fourth Proportional to 50,990.82, 70,366.27 and 28,328.48

Step by Step Solution

1. Step 1: Write the proportion equation
   50,990.82 : 70,366.27 = 28,328.48 : x
2. Step 2: Convert to fraction form
   50,990.82/70,366.27 = 28,328.48/x
3. Step 3: Cross multiply
   50,990.82x = 70,366.27 × 28,328.48
4. Step 4: Simplify right side
   50,990.82x = 1,993,369,762.52
5. Step 5: Solve for x
   x = 1,993,369,762.52/50,990.82
6. Step 6: Final answer
   x = 39,092.72