Finding the Fourth Proportional to 105,977.23, 159,100.73 and 68,693.32

Step by Step Solution

1. Step 1: Write the proportion equation
   105,977.23 : 159,100.73 = 68,693.32 : x
2. Step 2: Convert to fraction form
   105,977.23/159,100.73 = 68,693.32/x
3. Step 3: Cross multiply
   105,977.23x = 159,100.73 × 68,693.32
4. Step 4: Simplify right side
   105,977.23x = 10,929,156,769.39
5. Step 5: Solve for x
   x = 10,929,156,769.39/105,977.23
6. Step 6: Final answer
   x = 103,127.41