Finding the Fourth Proportional to 321,343.68, 482,354.72 and 314,105.57

Step by Step Solution

1. Step 1: Write the proportion equation
   321,343.68 : 482,354.72 = 314,105.57 : x
2. Step 2: Convert to fraction form
   321,343.68/482,354.72 = 314,105.57/x
3. Step 3: Cross multiply
   321,343.68x = 482,354.72 × 314,105.57
4. Step 4: Simplify right side
   321,343.68x = 151,510,304,979.91
5. Step 5: Solve for x
   x = 151,510,304,979.91/321,343.68
6. Step 6: Final answer
   x = 471,489.91