Finding the Fourth Proportional to 321,030.62, 443,026.89 and 185,062.09

Step by Step Solution

1. Step 1: Write the proportion equation
   321,030.62 : 443,026.89 = 185,062.09 : x
2. Step 2: Convert to fraction form
   321,030.62/443,026.89 = 185,062.09/x
3. Step 3: Cross multiply
   321,030.62x = 443,026.89 × 185,062.09
4. Step 4: Simplify right side
   321,030.62x = 81,987,482,189.60
5. Step 5: Solve for x
   x = 81,987,482,189.60/321,030.62
6. Step 6: Final answer
   x = 255,388.36