Finding the Fourth Proportional to 321,134.24, 481,716.72 and 155,061.92

Step by Step Solution

1. Step 1: Write the proportion equation
   321,134.24 : 481,716.72 = 155,061.92 : x
2. Step 2: Convert to fraction form
   321,134.24/481,716.72 = 155,061.92/x
3. Step 3: Cross multiply
   321,134.24x = 481,716.72 × 155,061.92
4. Step 4: Simplify right side
   321,134.24x = 74,695,919,499.30
5. Step 5: Solve for x
   x = 74,695,919,499.30/321,134.24
6. Step 6: Final answer
   x = 232,600.30