Finding the Fourth Proportional to 89,484.18, 123,481.81 and 49,196.90

Step by Step Solution

1. Step 1: Write the proportion equation
   89,484.18 : 123,481.81 = 49,196.90 : x
2. Step 2: Convert to fraction form
   89,484.18/123,481.81 = 49,196.90/x
3. Step 3: Cross multiply
   89,484.18x = 123,481.81 × 49,196.90
4. Step 4: Simplify right side
   89,484.18x = 6,074,922,258.39
5. Step 5: Solve for x
   x = 6,074,922,258.39/89,484.18
6. Step 6: Final answer
   x = 67,888.23