Finding the Fourth Proportional to 200,456.42, 300,467.28 and 100,375.34

Step by Step Solution

1. Step 1: Write the proportion equation
   200,456.42 : 300,467.28 = 100,375.34 : x
2. Step 2: Convert to fraction form
   200,456.42/300,467.28 = 100,375.34/x
3. Step 3: Cross multiply
   200,456.42x = 300,467.28 × 100,375.34
4. Step 4: Simplify right side
   200,456.42x = 30,159,505,388.88
5. Step 5: Solve for x
   x = 30,159,505,388.88/200,456.42
6. Step 6: Final answer
   x = 150,454.18