Finding the Fourth Proportional to 35,106.92, 48,443.22 and 20,957

Step by Step Solution

1. Step 1: Write the proportion equation
   35,106.92 : 48,443.22 = 20,957 : x
2. Step 2: Convert to fraction form
   35,106.92/48,443.22 = 20,957/x
3. Step 3: Cross multiply
   35,106.92x = 48,443.22 × 20,957
4. Step 4: Simplify right side
   35,106.92x = 1,015,224,561.54
5. Step 5: Solve for x
   x = 1,015,224,561.54/35,106.92
6. Step 6: Final answer
   x = 28,918.08