Finding the Fourth Proportional to 223,978.50, 335,974.24 and 57,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   223,978.50 : 335,974.24 = 57,766.50 : x
2. Step 2: Convert to fraction form
   223,978.50/335,974.24 = 57,766.50/x
3. Step 3: Cross multiply
   223,978.50x = 335,974.24 × 57,766.50
4. Step 4: Simplify right side
   223,978.50x = 19,408,055,934.96
5. Step 5: Solve for x
   x = 19,408,055,934.96/223,978.50
6. Step 6: Final answer
   x = 86,651.42