Finding the Fourth Proportional to 327,086.72, 490,819.12 and 137,532

Step by Step Solution

1. Step 1: Write the proportion equation
   327,086.72 : 490,819.12 = 137,532 : x
2. Step 2: Convert to fraction form
   327,086.72/490,819.12 = 137,532/x
3. Step 3: Cross multiply
   327,086.72x = 490,819.12 × 137,532
4. Step 4: Simplify right side
   327,086.72x = 67,503,335,211.84
5. Step 5: Solve for x
   x = 67,503,335,211.84/327,086.72
6. Step 6: Final answer
   x = 206,377.49