Finding the Fourth Proportional to 144,356.84, 199,212.72 and 80,694.68

Step by Step Solution

1. Step 1: Write the proportion equation
   144,356.84 : 199,212.72 = 80,694.68 : x
2. Step 2: Convert to fraction form
   144,356.84/199,212.72 = 80,694.68/x
3. Step 3: Cross multiply
   144,356.84x = 199,212.72 × 80,694.68
4. Step 4: Simplify right side
   144,356.84x = 16,075,406,692.33
5. Step 5: Solve for x
   x = 16,075,406,692.33/144,356.84
6. Step 6: Final answer
   x = 111,358.82