Finding the Fourth Proportional to 123,018.69, 183,853.92 and 89,808.69

Step by Step Solution

1. Step 1: Write the proportion equation
   123,018.69 : 183,853.92 = 89,808.69 : x
2. Step 2: Convert to fraction form
   123,018.69/183,853.92 = 89,808.69/x
3. Step 3: Cross multiply
   123,018.69x = 183,853.92 × 89,808.69
4. Step 4: Simplify right side
   123,018.69x = 16,511,679,706.56
5. Step 5: Solve for x
   x = 16,511,679,706.56/123,018.69
6. Step 6: Final answer
   x = 134,220.90