Finding the Fourth Proportional to 89,673.50, 123,758.07 and 49,929.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,673.50 : 123,758.07 = 49,929.50 : x
2. Step 2: Convert to fraction form
   89,673.50/123,758.07 = 49,929.50/x
3. Step 3: Cross multiply
   89,673.50x = 123,758.07 × 49,929.50
4. Step 4: Simplify right side
   89,673.50x = 6,179,178,556.07
5. Step 5: Solve for x
   x = 6,179,178,556.07/89,673.50
6. Step 6: Final answer
   x = 68,907.52