Finding the Fourth Proportional to 115,028.62, 158,743 and 62,644.05

Step by Step Solution

1. Step 1: Write the proportion equation
   115,028.62 : 158,743 = 62,644.05 : x
2. Step 2: Convert to fraction form
   115,028.62/158,743 = 62,644.05/x
3. Step 3: Cross multiply
   115,028.62x = 158,743 × 62,644.05
4. Step 4: Simplify right side
   115,028.62x = 9,944,304,429.15
5. Step 5: Solve for x
   x = 9,944,304,429.15/115,028.62
6. Step 6: Final answer
   x = 86,450.70