Finding the Fourth Proportional to 105,863.76, 158,795.52 and 82,507.68

Step by Step Solution

1. Step 1: Write the proportion equation
   105,863.76 : 158,795.52 = 82,507.68 : x
2. Step 2: Convert to fraction form
   105,863.76/158,795.52 = 82,507.68/x
3. Step 3: Cross multiply
   105,863.76x = 158,795.52 × 82,507.68
4. Step 4: Simplify right side
   105,863.76x = 13,101,849,949.59
5. Step 5: Solve for x
   x = 13,101,849,949.59/105,863.76
6. Step 6: Final answer
   x = 123,761.43