Finding the Fourth Proportional to 89,774.61, 123,886.59 and 49,488.54

Step by Step Solution

1. Step 1: Write the proportion equation
   89,774.61 : 123,886.59 = 49,488.54 : x
2. Step 2: Convert to fraction form
   89,774.61/123,886.59 = 49,488.54/x
3. Step 3: Cross multiply
   89,774.61x = 123,886.59 × 49,488.54
4. Step 4: Simplify right side
   89,774.61x = 6,130,966,464.68
5. Step 5: Solve for x
   x = 6,130,966,464.68/89,774.61
6. Step 6: Final answer
   x = 68,292.88