Finding the Fourth Proportional to 300,054.42, 414,179.37 and 172,780.74

Step by Step Solution

1. Step 1: Write the proportion equation
   300,054.42 : 414,179.37 = 172,780.74 : x
2. Step 2: Convert to fraction form
   300,054.42/414,179.37 = 172,780.74/x
3. Step 3: Cross multiply
   300,054.42x = 414,179.37 × 172,780.74
4. Step 4: Simplify right side
   300,054.42x = 71,562,218,041.33
5. Step 5: Solve for x
   x = 71,562,218,041.33/300,054.42
6. Step 6: Final answer
   x = 238,497.46