Finding the Fourth Proportional to 105,768.72, 158,637.42 and 30,868.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,768.72 : 158,637.42 = 30,868.76 : x
2. Step 2: Convert to fraction form
   105,768.72/158,637.42 = 30,868.76/x
3. Step 3: Cross multiply
   105,768.72x = 158,637.42 × 30,868.76
4. Step 4: Simplify right side
   105,768.72x = 4,896,940,841.59
5. Step 5: Solve for x
   x = 4,896,940,841.59/105,768.72
6. Step 6: Final answer
   x = 46,298.57