Finding the Fourth Proportional to 200,448.42, 300,455.28 and 100,367.34

Step by Step Solution

1. Step 1: Write the proportion equation
   200,448.42 : 300,455.28 = 100,367.34 : x
2. Step 2: Convert to fraction form
   200,448.42/300,455.28 = 100,367.34/x
3. Step 3: Cross multiply
   200,448.42x = 300,455.28 × 100,367.34
4. Step 4: Simplify right side
   200,448.42x = 30,155,897,242.56
5. Step 5: Solve for x
   x = 30,155,897,242.56/200,448.42
6. Step 6: Final answer
   x = 150,442.18