Finding the Fourth Proportional to 321,900.48, 482,936.83 and 111,538.42

Step by Step Solution

1. Step 1: Write the proportion equation
   321,900.48 : 482,936.83 = 111,538.42 : x
2. Step 2: Convert to fraction form
   321,900.48/482,936.83 = 111,538.42/x
3. Step 3: Cross multiply
   321,900.48x = 482,936.83 × 111,538.42
4. Step 4: Simplify right side
   321,900.48x = 53,866,009,491.82
5. Step 5: Solve for x
   x = 53,866,009,491.82/321,900.48
6. Step 6: Final answer
   x = 167,337.46