Finding the Fourth Proportional to 105,085, 144,997.46 and 62,647.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105,085 : 144,997.46 = 62,647.48 : x
2. Step 2: Convert to fraction form
   105,085/144,997.46 = 62,647.48/x
3. Step 3: Cross multiply
   105,085x = 144,997.46 × 62,647.48
4. Step 4: Simplify right side
   105,085x = 9,083,725,475.40
5. Step 5: Solve for x
   x = 9,083,725,475.40/105,085
6. Step 6: Final answer
   x = 86,441.69