Finding the Fourth Proportional to 81,850.53, 112,958.89 and 49,607.31

Step by Step Solution

1. Step 1: Write the proportion equation
   81,850.53 : 112,958.89 = 49,607.31 : x
2. Step 2: Convert to fraction form
   81,850.53/112,958.89 = 49,607.31/x
3. Step 3: Cross multiply
   81,850.53x = 112,958.89 × 49,607.31
4. Step 4: Simplify right side
   81,850.53x = 5,603,586,864.65
5. Step 5: Solve for x
   x = 5,603,586,864.65/81,850.53
6. Step 6: Final answer
   x = 68,461.22