Finding the Fourth Proportional to 404,286.32, 606,493.58 and 134,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,286.32 : 606,493.58 = 134,424.50 : x
2. Step 2: Convert to fraction form
   404,286.32/606,493.58 = 134,424.50/x
3. Step 3: Cross multiply
   404,286.32x = 606,493.58 × 134,424.50
4. Step 4: Simplify right side
   404,286.32x = 81,527,592,540.12
5. Step 5: Solve for x
   x = 81,527,592,540.12/404,286.32
6. Step 6: Final answer
   x = 201,658.05