Finding the Fourth Proportional to 143,171.71, 197,675.81 and 89,480.86

Step by Step Solution

1. Step 1: Write the proportion equation
   143,171.71 : 197,675.81 = 89,480.86 : x
2. Step 2: Convert to fraction form
   143,171.71/197,675.81 = 89,480.86/x
3. Step 3: Cross multiply
   143,171.71x = 197,675.81 × 89,480.86
4. Step 4: Simplify right side
   143,171.71x = 17,688,200,873.96
5. Step 5: Solve for x
   x = 17,688,200,873.96/143,171.71
6. Step 6: Final answer
   x = 123,545.37