Finding the Fourth Proportional to 225,978.83, 338,548.86 and 161,804.55

Step by Step Solution

1. Step 1: Write the proportion equation
   225,978.83 : 338,548.86 = 161,804.55 : x
2. Step 2: Convert to fraction form
   225,978.83/338,548.86 = 161,804.55/x
3. Step 3: Cross multiply
   225,978.83x = 338,548.86 × 161,804.55
4. Step 4: Simplify right side
   225,978.83x = 54,778,745,945.31
5. Step 5: Solve for x
   x = 54,778,745,945.31/225,978.83
6. Step 6: Final answer
   x = 242,406.54