Finding the Fourth Proportional to 144,494.85, 199,409.00 and 89,316.44

Step by Step Solution

1. Step 1: Write the proportion equation
   144,494.85 : 199,409.00 = 89,316.44 : x
2. Step 2: Convert to fraction form
   144,494.85/199,409.00 = 89,316.44/x
3. Step 3: Cross multiply
   144,494.85x = 199,409.00 × 89,316.44
4. Step 4: Simplify right side
   144,494.85x = 17,810,500,540.33
5. Step 5: Solve for x
   x = 17,810,500,540.33/144,494.85
6. Step 6: Final answer
   x = 123,260.45