Finding the Fourth Proportional to 52,443.21, 72,370.97 and 28,569.37

Step by Step Solution

1. Step 1: Write the proportion equation
   52,443.21 : 72,370.97 = 28,569.37 : x
2. Step 2: Convert to fraction form
   52,443.21/72,370.97 = 28,569.37/x
3. Step 3: Cross multiply
   52,443.21x = 72,370.97 × 28,569.37
4. Step 4: Simplify right side
   52,443.21x = 2,067,593,019.19
5. Step 5: Solve for x
   x = 2,067,593,019.19/52,443.21
6. Step 6: Final answer
   x = 39,425.37