Finding the Fourth Proportional to 39,105.36, 58,443.24 and 28,597.44

Step by Step Solution

1. Step 1: Write the proportion equation
   39,105.36 : 58,443.24 = 28,597.44 : x
2. Step 2: Convert to fraction form
   39,105.36/58,443.24 = 28,597.44/x
3. Step 3: Cross multiply
   39,105.36x = 58,443.24 × 28,597.44
4. Step 4: Simplify right side
   39,105.36x = 1,671,327,049.31
5. Step 5: Solve for x
   x = 1,671,327,049.31/39,105.36
6. Step 6: Final answer
   x = 42,739.08