Finding the Fourth Proportional to 341,978.44, 512,976.42 and 162,021.73

Step by Step Solution

1. Step 1: Write the proportion equation
   341,978.44 : 512,976.42 = 162,021.73 : x
2. Step 2: Convert to fraction form
   341,978.44/512,976.42 = 162,021.73/x
3. Step 3: Cross multiply
   341,978.44x = 512,976.42 × 162,021.73
4. Step 4: Simplify right side
   341,978.44x = 83,113,327,017.61
5. Step 5: Solve for x
   x = 83,113,327,017.61/341,978.44
6. Step 6: Final answer
   x = 243,036.75