Finding the Fourth Proportional to 89,441.25, 123,431.21 and 49,156.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,441.25 : 123,431.21 = 49,156.03 : x
2. Step 2: Convert to fraction form
   89,441.25/123,431.21 = 49,156.03/x
3. Step 3: Cross multiply
   89,441.25x = 123,431.21 × 49,156.03
4. Step 4: Simplify right side
   89,441.25x = 6,067,388,354.54
5. Step 5: Solve for x
   x = 6,067,388,354.54/89,441.25
6. Step 6: Final answer
   x = 67,836.58