Finding the Fourth Proportional to 105,102.24, 144,968.88 and 62,628

Step by Step Solution

1. Step 1: Write the proportion equation
   105,102.24 : 144,968.88 = 62,628 : x
2. Step 2: Convert to fraction form
   105,102.24/144,968.88 = 62,628/x
3. Step 3: Cross multiply
   105,102.24x = 144,968.88 × 62,628
4. Step 4: Simplify right side
   105,102.24x = 9,079,111,016.64
5. Step 5: Solve for x
   x = 9,079,111,016.64/105,102.24
6. Step 6: Final answer
   x = 86,383.61