Finding the Fourth Proportional to 518,443.37, 777,591.23 and 163,411.25

Step by Step Solution

1. Step 1: Write the proportion equation
   518,443.37 : 777,591.23 = 163,411.25 : x
2. Step 2: Convert to fraction form
   518,443.37/777,591.23 = 163,411.25/x
3. Step 3: Cross multiply
   518,443.37x = 777,591.23 × 163,411.25
4. Step 4: Simplify right side
   518,443.37x = 127,067,150,178.33
5. Step 5: Solve for x
   x = 127,067,150,178.33/518,443.37
6. Step 6: Final answer
   x = 245,093.60