Finding the Fourth Proportional to 105,081, 144,991.94 and 62,643.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105,081 : 144,991.94 = 62,643.48 : x
2. Step 2: Convert to fraction form
   105,081/144,991.94 = 62,643.48/x
3. Step 3: Cross multiply
   105,081x = 144,991.94 × 62,643.48
4. Step 4: Simplify right side
   105,081x = 9,082,799,693.55
5. Step 5: Solve for x
   x = 9,082,799,693.55/105,081
6. Step 6: Final answer
   x = 86,436.17