Finding the Fourth Proportional to 323,128.40, 445,899.88 and 179,884.72

Step by Step Solution

1. Step 1: Write the proportion equation
   323,128.40 : 445,899.88 = 179,884.72 : x
2. Step 2: Convert to fraction form
   323,128.40/445,899.88 = 179,884.72/x
3. Step 3: Cross multiply
   323,128.40x = 445,899.88 × 179,884.72
4. Step 4: Simplify right side
   323,128.40x = 80,210,575,061.83
5. Step 5: Solve for x
   x = 80,210,575,061.83/323,128.40
6. Step 6: Final answer
   x = 248,231.28