Finding the Fourth Proportional to 89,557.25, 123,589 and 49,270.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,557.25 : 123,589 = 49,270.15 : x
2. Step 2: Convert to fraction form
   89,557.25/123,589 = 49,270.15/x
3. Step 3: Cross multiply
   89,557.25x = 123,589 × 49,270.15
4. Step 4: Simplify right side
   89,557.25x = 6,089,248,568.35
5. Step 5: Solve for x
   x = 6,089,248,568.35/89,557.25
6. Step 6: Final answer
   x = 67,992.80