Finding the Fourth Proportional to 263,878.50, 395,667.79 and 103,867.71

Step by Step Solution

1. Step 1: Write the proportion equation
   263,878.50 : 395,667.79 = 103,867.71 : x
2. Step 2: Convert to fraction form
   263,878.50/395,667.79 = 103,867.71/x
3. Step 3: Cross multiply
   263,878.50x = 395,667.79 × 103,867.71
4. Step 4: Simplify right side
   263,878.50x = 41,097,105,914.14
5. Step 5: Solve for x
   x = 41,097,105,914.14/263,878.50
6. Step 6: Final answer
   x = 155,742.53