Finding the Fourth Proportional to 50,836, 70,136.88 and 30,685.23

Step by Step Solution

1. Step 1: Write the proportion equation
   50,836 : 70,136.88 = 30,685.23 : x
2. Step 2: Convert to fraction form
   50,836/70,136.88 = 30,685.23/x
3. Step 3: Cross multiply
   50,836x = 70,136.88 × 30,685.23
4. Step 4: Simplify right side
   50,836x = 2,152,166,294.28
5. Step 5: Solve for x
   x = 2,152,166,294.28/50,836
6. Step 6: Final answer
   x = 42,335.48