Finding the Fourth Proportional to 105,720.28, 158,587.72 and 30,839.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,720.28 : 158,587.72 = 30,839.24 : x
2. Step 2: Convert to fraction form
   105,720.28/158,587.72 = 30,839.24/x
3. Step 3: Cross multiply
   105,720.28x = 158,587.72 × 30,839.24
4. Step 4: Simplify right side
   105,720.28x = 4,890,724,758.13
5. Step 5: Solve for x
   x = 4,890,724,758.13/105,720.28
6. Step 6: Final answer
   x = 46,260.99