Finding the Fourth Proportional to 49,865.46, 68,807.52 and 28,644.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,865.46 : 68,807.52 = 28,644.72 : x
2. Step 2: Convert to fraction form
   49,865.46/68,807.52 = 28,644.72/x
3. Step 3: Cross multiply
   49,865.46x = 68,807.52 × 28,644.72
4. Step 4: Simplify right side
   49,865.46x = 1,970,972,144.29
5. Step 5: Solve for x
   x = 1,970,972,144.29/49,865.46
6. Step 6: Final answer
   x = 39,525.80