Finding the Fourth Proportional to 105,423.14, 158,228.27 and 49,293.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,423.14 : 158,228.27 = 49,293.78 : x
2. Step 2: Convert to fraction form
   105,423.14/158,228.27 = 49,293.78/x
3. Step 3: Cross multiply
   105,423.14x = 158,228.27 × 49,293.78
4. Step 4: Simplify right side
   105,423.14x = 7,799,669,284.69
5. Step 5: Solve for x
   x = 7,799,669,284.69/105,423.14
6. Step 6: Final answer
   x = 73,984.42