Finding the Fourth Proportional to 300,956.88, 415,364.04 and 173,607.12

Step by Step Solution

1. Step 1: Write the proportion equation
   300,956.88 : 415,364.04 = 173,607.12 : x
2. Step 2: Convert to fraction form
   300,956.88/415,364.04 = 173,607.12/x
3. Step 3: Cross multiply
   300,956.88x = 415,364.04 × 173,607.12
4. Step 4: Simplify right side
   300,956.88x = 72,110,154,735.96
5. Step 5: Solve for x
   x = 72,110,154,735.96/300,956.88
6. Step 6: Final answer
   x = 239,602.94