Finding the Fourth Proportional to 31,608, 43,622.88 and 18,360

Step by Step Solution

1. Step 1: Write the proportion equation
   31,608 : 43,622.88 = 18,360 : x
2. Step 2: Convert to fraction form
   31,608/43,622.88 = 18,360/x
3. Step 3: Cross multiply
   31,608x = 43,622.88 × 18,360
4. Step 4: Simplify right side
   31,608x = 800,916,076.80
5. Step 5: Solve for x
   x = 800,916,076.80/31,608
6. Step 6: Final answer
   x = 25,339.03