Finding the Fourth Proportional to 143,293.88, 197,684.18 and 89,485.48

Step by Step Solution

1. Step 1: Write the proportion equation
   143,293.88 : 197,684.18 = 89,485.48 : x
2. Step 2: Convert to fraction form
   143,293.88/197,684.18 = 89,485.48/x
3. Step 3: Cross multiply
   143,293.88x = 197,684.18 × 89,485.48
4. Step 4: Simplify right side
   143,293.88x = 17,689,863,735.71
5. Step 5: Solve for x
   x = 17,689,863,735.71/143,293.88
6. Step 6: Final answer
   x = 123,451.63