Finding the Fourth Proportional to 311,856.21, 467,780.20 and 75,196.82

Step by Step Solution

1. Step 1: Write the proportion equation
   311,856.21 : 467,780.20 = 75,196.82 : x
2. Step 2: Convert to fraction form
   311,856.21/467,780.20 = 75,196.82/x
3. Step 3: Cross multiply
   311,856.21x = 467,780.20 × 75,196.82
4. Step 4: Simplify right side
   311,856.21x = 35,175,584,480.42
5. Step 5: Solve for x
   x = 35,175,584,480.42/311,856.21
6. Step 6: Final answer
   x = 112,794.24