Finding the Fourth Proportional to 105,076, 144,985.04 and 62,638.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105,076 : 144,985.04 = 62,638.48 : x
2. Step 2: Convert to fraction form
   105,076/144,985.04 = 62,638.48/x
3. Step 3: Cross multiply
   105,076x = 144,985.04 × 62,638.48
4. Step 4: Simplify right side
   105,076x = 9,081,642,528.34
5. Step 5: Solve for x
   x = 9,081,642,528.34/105,076
6. Step 6: Final answer
   x = 86,429.28