Finding the Fourth Proportional to 89,665.39, 123,738.27 and 49,379.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,665.39 : 123,738.27 = 49,379.03 : x
2. Step 2: Convert to fraction form
   89,665.39/123,738.27 = 49,379.03/x
3. Step 3: Cross multiply
   89,665.39x = 123,738.27 × 49,379.03
4. Step 4: Simplify right side
   89,665.39x = 6,110,075,406.63
5. Step 5: Solve for x
   x = 6,110,075,406.63/89,665.39
6. Step 6: Final answer
   x = 68,143.07