Finding the Fourth Proportional to 35,144.92, 48,495.78 and 20,995

Step by Step Solution

1. Step 1: Write the proportion equation
   35,144.92 : 48,495.78 = 20,995 : x
2. Step 2: Convert to fraction form
   35,144.92/48,495.78 = 20,995/x
3. Step 3: Cross multiply
   35,144.92x = 48,495.78 × 20,995
4. Step 4: Simplify right side
   35,144.92x = 1,018,168,901.10
5. Step 5: Solve for x
   x = 1,018,168,901.10/35,144.92
6. Step 6: Final answer
   x = 28,970.59