Finding the Fourth Proportional to 223,978.96, 335,964.34 and 55,499.73

Step by Step Solution

1. Step 1: Write the proportion equation
   223,978.96 : 335,964.34 = 55,499.73 : x
2. Step 2: Convert to fraction form
   223,978.96/335,964.34 = 55,499.73/x
3. Step 3: Cross multiply
   223,978.96x = 335,964.34 × 55,499.73
4. Step 4: Simplify right side
   223,978.96x = 18,645,930,159.63
5. Step 5: Solve for x
   x = 18,645,930,159.63/223,978.96
6. Step 6: Final answer
   x = 83,248.58