Finding the Fourth Proportional to 89,821.20, 123,947.52 and 49,535.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,821.20 : 123,947.52 = 49,535.25 : x
2. Step 2: Convert to fraction form
   89,821.20/123,947.52 = 49,535.25/x
3. Step 3: Cross multiply
   89,821.20x = 123,947.52 × 49,535.25
4. Step 4: Simplify right side
   89,821.20x = 6,139,770,739.52
5. Step 5: Solve for x
   x = 6,139,770,739.52/89,821.20
6. Step 6: Final answer
   x = 68,355.47