Finding the Fourth Proportional to 89,403.05, 123,378.38 and 49,119.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,403.05 : 123,378.38 = 49,119.42 : x
2. Step 2: Convert to fraction form
   89,403.05/123,378.38 = 49,119.42/x
3. Step 3: Cross multiply
   89,403.05x = 123,378.38 × 49,119.42
4. Step 4: Simplify right side
   89,403.05x = 6,060,274,466.14
5. Step 5: Solve for x
   x = 6,060,274,466.14/89,403.05
6. Step 6: Final answer
   x = 67,785.99