Finding the Fourth Proportional to 89,364.40, 123,323.72 and 49,079

Step by Step Solution

1. Step 1: Write the proportion equation
   89,364.40 : 123,323.72 = 49,079 : x
2. Step 2: Convert to fraction form
   89,364.40/123,323.72 = 49,079/x
3. Step 3: Cross multiply
   89,364.40x = 123,323.72 × 49,079
4. Step 4: Simplify right side
   89,364.40x = 6,052,604,853.88
5. Step 5: Solve for x
   x = 6,052,604,853.88/89,364.40
6. Step 6: Final answer
   x = 67,729.49