Finding the Fourth Proportional to 256,568.58, 384,865.83 and 79,196.94

Step by Step Solution

1. Step 1: Write the proportion equation
   256,568.58 : 384,865.83 = 79,196.94 : x
2. Step 2: Convert to fraction form
   256,568.58/384,865.83 = 79,196.94/x
3. Step 3: Cross multiply
   256,568.58x = 384,865.83 × 79,196.94
4. Step 4: Simplify right side
   256,568.58x = 30,480,196,046.56
5. Step 5: Solve for x
   x = 30,480,196,046.56/256,568.58
6. Step 6: Final answer
   x = 118,799.41