Finding the Fourth Proportional to 123,019.69, 183,855.41 and 89,809.69

Step by Step Solution

1. Step 1: Write the proportion equation
   123,019.69 : 183,855.41 = 89,809.69 : x
2. Step 2: Convert to fraction form
   123,019.69/183,855.41 = 89,809.69/x
3. Step 3: Cross multiply
   123,019.69x = 183,855.41 × 89,809.69
4. Step 4: Simplify right side
   123,019.69x = 16,511,997,376.92
5. Step 5: Solve for x
   x = 16,511,997,376.92/123,019.69
6. Step 6: Final answer
   x = 134,222.39