Finding the Fourth Proportional to 300,896.72, 415,221.48 and 173,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,896.72 : 415,221.48 = 173,564.72 : x
2. Step 2: Convert to fraction form
   300,896.72/415,221.48 = 173,564.72/x
3. Step 3: Cross multiply
   300,896.72x = 415,221.48 × 173,564.72
4. Step 4: Simplify right side
   300,896.72x = 72,067,799,914.19
5. Step 5: Solve for x
   x = 72,067,799,914.19/300,896.72
6. Step 6: Final answer
   x = 239,510.09