Finding the Fourth Proportional to 105,817.80, 158,778.59 and 49,662.47

Step by Step Solution

1. Step 1: Write the proportion equation
   105,817.80 : 158,778.59 = 49,662.47 : x
2. Step 2: Convert to fraction form
   105,817.80/158,778.59 = 49,662.47/x
3. Step 3: Cross multiply
   105,817.80x = 158,778.59 × 49,662.47
4. Step 4: Simplify right side
   105,817.80x = 7,885,336,962.52
5. Step 5: Solve for x
   x = 7,885,336,962.52/105,817.80
6. Step 6: Final answer
   x = 74,518.06