Finding the Fourth Proportional to 144,788.84, 216,994.10 and 80,744.42

Step by Step Solution

1. Step 1: Write the proportion equation
   144,788.84 : 216,994.10 = 80,744.42 : x
2. Step 2: Convert to fraction form
   144,788.84/216,994.10 = 80,744.42/x
3. Step 3: Cross multiply
   144,788.84x = 216,994.10 × 80,744.42
4. Step 4: Simplify right side
   144,788.84x = 17,521,063,085.40
5. Step 5: Solve for x
   x = 17,521,063,085.40/144,788.84
6. Step 6: Final answer
   x = 121,011.15