Finding the Fourth Proportional to 518,016, 777,068.01 and 144,039

Step by Step Solution

1. Step 1: Write the proportion equation
   518,016 : 777,068.01 = 144,039 : x
2. Step 2: Convert to fraction form
   518,016/777,068.01 = 144,039/x
3. Step 3: Cross multiply
   518,016x = 777,068.01 × 144,039
4. Step 4: Simplify right side
   518,016x = 111,928,099,092.39
5. Step 5: Solve for x
   x = 111,928,099,092.39/518,016
6. Step 6: Final answer
   x = 216,070.74