Finding the Fourth Proportional to 89,285.81, 123,182.93 and 54,818.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,285.81 : 123,182.93 = 54,818.69 : x
2. Step 2: Convert to fraction form
   89,285.81/123,182.93 = 54,818.69/x
3. Step 3: Cross multiply
   89,285.81x = 123,182.93 × 54,818.69
4. Step 4: Simplify right side
   89,285.81x = 6,752,726,578.87
5. Step 5: Solve for x
   x = 6,752,726,578.87/89,285.81
6. Step 6: Final answer
   x = 75,630.46