Finding the Fourth Proportional to 105,709.38, 158,548.68 and 30,809.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,709.38 : 158,548.68 = 30,809.42 : x
2. Step 2: Convert to fraction form
   105,709.38/158,548.68 = 30,809.42/x
3. Step 3: Cross multiply
   105,709.38x = 158,548.68 × 30,809.42
4. Step 4: Simplify right side
   105,709.38x = 4,884,792,079.82
5. Step 5: Solve for x
   x = 4,884,792,079.82/105,709.38
6. Step 6: Final answer
   x = 46,209.64