Finding the Fourth Proportional to 514,687.21, 772,080.71 and 159,605.89

Step by Step Solution

1. Step 1: Write the proportion equation
   514,687.21 : 772,080.71 = 159,605.89 : x
2. Step 2: Convert to fraction form
   514,687.21/772,080.71 = 159,605.89/x
3. Step 3: Cross multiply
   514,687.21x = 772,080.71 × 159,605.89
4. Step 4: Simplify right side
   514,687.21x = 123,228,631,383.89
5. Step 5: Solve for x
   x = 123,228,631,383.89/514,687.21
6. Step 6: Final answer
   x = 239,424.31