Finding the Fourth Proportional to 49,104.42, 67,760.78 and 28,960.32

Step by Step Solution

1. Step 1: Write the proportion equation
   49,104.42 : 67,760.78 = 28,960.32 : x
2. Step 2: Convert to fraction form
   49,104.42/67,760.78 = 28,960.32/x
3. Step 3: Cross multiply
   49,104.42x = 67,760.78 × 28,960.32
4. Step 4: Simplify right side
   49,104.42x = 1,962,373,727.45
5. Step 5: Solve for x
   x = 1,962,373,727.45/49,104.42
6. Step 6: Final answer
   x = 39,963.28