Finding the Fourth Proportional to 30,085.37, 41,517.59 and 18,155.28

Step by Step Solution

1. Step 1: Write the proportion equation
   30,085.37 : 41,517.59 = 18,155.28 : x
2. Step 2: Convert to fraction form
   30,085.37/41,517.59 = 18,155.28/x
3. Step 3: Cross multiply
   30,085.37x = 41,517.59 × 18,155.28
4. Step 4: Simplify right side
   30,085.37x = 753,763,380.60
5. Step 5: Solve for x
   x = 753,763,380.60/30,085.37
6. Step 6: Final answer
   x = 25,054.15