Finding the Fourth Proportional to 72,796.16, 100,450.56 and 40,976

Step by Step Solution

1. Step 1: Write the proportion equation
   72,796.16 : 100,450.56 = 40,976 : x
2. Step 2: Convert to fraction form
   72,796.16/100,450.56 = 40,976/x
3. Step 3: Cross multiply
   72,796.16x = 100,450.56 × 40,976
4. Step 4: Simplify right side
   72,796.16x = 4,116,062,146.56
5. Step 5: Solve for x
   x = 4,116,062,146.56/72,796.16
6. Step 6: Final answer
   x = 56,542.30