Finding the Fourth Proportional to 321,308.57, 443,460.72 and 185,318.18

Step by Step Solution

1. Step 1: Write the proportion equation
   321,308.57 : 443,460.72 = 185,318.18 : x
2. Step 2: Convert to fraction form
   321,308.57/443,460.72 = 185,318.18/x
3. Step 3: Cross multiply
   321,308.57x = 443,460.72 × 185,318.18
4. Step 4: Simplify right side
   321,308.57x = 82,181,333,672.51
5. Step 5: Solve for x
   x = 82,181,333,672.51/321,308.57
6. Step 6: Final answer
   x = 255,770.75