Finding the Fourth Proportional to 143,485.01, 197,955.83 and 89,749.61

Step by Step Solution

1. Step 1: Write the proportion equation
   143,485.01 : 197,955.83 = 89,749.61 : x
2. Step 2: Convert to fraction form
   143,485.01/197,955.83 = 89,749.61/x
3. Step 3: Cross multiply
   143,485.01x = 197,955.83 × 89,749.61
4. Step 4: Simplify right side
   143,485.01x = 17,766,458,539.73
5. Step 5: Solve for x
   x = 17,766,458,539.73/143,485.01
6. Step 6: Final answer
   x = 123,821.01