Finding the Fourth Proportional to 143,171.15, 197,675.03 and 89,480.30

Step by Step Solution

1. Step 1: Write the proportion equation
   143,171.15 : 197,675.03 = 89,480.30 : x
2. Step 2: Convert to fraction form
   143,171.15/197,675.03 = 89,480.30/x
3. Step 3: Cross multiply
   143,171.15x = 197,675.03 × 89,480.30
4. Step 4: Simplify right side
   143,171.15x = 17,688,020,222.23
5. Step 5: Solve for x
   x = 17,688,020,222.23/143,171.15
6. Step 6: Final answer
   x = 123,544.59