Finding the Fourth Proportional to 137,546.37, 189,896.81 and 89,879.49

Step by Step Solution

1. Step 1: Write the proportion equation
   137,546.37 : 189,896.81 = 89,879.49 : x
2. Step 2: Convert to fraction form
   137,546.37/189,896.81 = 89,879.49/x
3. Step 3: Cross multiply
   137,546.37x = 189,896.81 × 89,879.49
4. Step 4: Simplify right side
   137,546.37x = 17,067,827,986.03
5. Step 5: Solve for x
   x = 17,067,827,986.03/137,546.37
6. Step 6: Final answer
   x = 124,087.81