Finding the Fourth Proportional to 89,578.47, 123,618.86 and 49,291.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,578.47 : 123,618.86 = 49,291.10 : x
2. Step 2: Convert to fraction form
   89,578.47/123,618.86 = 49,291.10/x
3. Step 3: Cross multiply
   89,578.47x = 123,618.86 × 49,291.10
4. Step 4: Simplify right side
   89,578.47x = 6,093,308,725.60
5. Step 5: Solve for x
   x = 6,093,308,725.60/89,578.47
6. Step 6: Final answer
   x = 68,022.02