Finding the Fourth Proportional to 35,498.25, 48,982.32 and 20,391.57

Step by Step Solution

1. Step 1: Write the proportion equation
   35,498.25 : 48,982.32 = 20,391.57 : x
2. Step 2: Convert to fraction form
   35,498.25/48,982.32 = 20,391.57/x
3. Step 3: Cross multiply
   35,498.25x = 48,982.32 × 20,391.57
4. Step 4: Simplify right side
   35,498.25x = 998,826,407.04
5. Step 5: Solve for x
   x = 998,826,407.04/35,498.25
6. Step 6: Final answer
   x = 28,137.34