Finding the Fourth Proportional to 300,823.37, 415,147.78 and 171,782.88

Step by Step Solution

1. Step 1: Write the proportion equation
   300,823.37 : 415,147.78 = 171,782.88 : x
2. Step 2: Convert to fraction form
   300,823.37/415,147.78 = 171,782.88/x
3. Step 3: Cross multiply
   300,823.37x = 415,147.78 × 171,782.88
4. Step 4: Simplify right side
   300,823.37x = 71,315,279,931.93
5. Step 5: Solve for x
   x = 71,315,279,931.93/300,823.37
6. Step 6: Final answer
   x = 237,066.95