Finding the Fourth Proportional to 50,768.76, 70,060.88 and 28,412.76

Step by Step Solution

1. Step 1: Write the proportion equation
   50,768.76 : 70,060.88 = 28,412.76 : x
2. Step 2: Convert to fraction form
   50,768.76/70,060.88 = 28,412.76/x
3. Step 3: Cross multiply
   50,768.76x = 70,060.88 × 28,412.76
4. Step 4: Simplify right side
   50,768.76x = 1,990,622,968.83
5. Step 5: Solve for x
   x = 1,990,622,968.83/50,768.76
6. Step 6: Final answer
   x = 39,209.60