Finding the Fourth Proportional to 49,021.94, 67,644.78 and 28,877.52

Step by Step Solution

1. Step 1: Write the proportion equation
   49,021.94 : 67,644.78 = 28,877.52 : x
2. Step 2: Convert to fraction form
   49,021.94/67,644.78 = 28,877.52/x
3. Step 3: Cross multiply
   49,021.94x = 67,644.78 × 28,877.52
4. Step 4: Simplify right side
   49,021.94x = 1,953,413,487.35
5. Step 5: Solve for x
   x = 1,953,413,487.35/49,021.94
6. Step 6: Final answer
   x = 39,847.74