Finding the Fourth Proportional to 89,512.97, 123,546.74 and 56,786.27

Step by Step Solution

1. Step 1: Write the proportion equation
   89,512.97 : 123,546.74 = 56,786.27 : x
2. Step 2: Convert to fraction form
   89,512.97/123,546.74 = 56,786.27/x
3. Step 3: Cross multiply
   89,512.97x = 123,546.74 × 56,786.27
4. Step 4: Simplify right side
   89,512.97x = 7,015,757,633.59
5. Step 5: Solve for x
   x = 7,015,757,633.59/89,512.97
6. Step 6: Final answer
   x = 78,377.00