Finding the Fourth Proportional to 52,745.94, 72,789.42 and 28,872.75

Step by Step Solution

1. Step 1: Write the proportion equation
   52,745.94 : 72,789.42 = 28,872.75 : x
2. Step 2: Convert to fraction form
   52,745.94/72,789.42 = 28,872.75/x
3. Step 3: Cross multiply
   52,745.94x = 72,789.42 × 28,872.75
4. Step 4: Simplify right side
   52,745.94x = 2,101,630,726.31
5. Step 5: Solve for x
   x = 2,101,630,726.31/52,745.94
6. Step 6: Final answer
   x = 39,844.41