Finding the Fourth Proportional to 321,435.83, 443,586.83 and 176,238.57

Step by Step Solution

1. Step 1: Write the proportion equation
   321,435.83 : 443,586.83 = 176,238.57 : x
2. Step 2: Convert to fraction form
   321,435.83/443,586.83 = 176,238.57/x
3. Step 3: Cross multiply
   321,435.83x = 443,586.83 × 176,238.57
4. Step 4: Simplify right side
   321,435.83x = 78,177,107,708.84
5. Step 5: Solve for x
   x = 78,177,107,708.84/321,435.83
6. Step 6: Final answer
   x = 243,212.18