Finding the Fourth Proportional to 89,215.54, 123,111.28 and 48,928.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,215.54 : 123,111.28 = 48,928.42 : x
2. Step 2: Convert to fraction form
   89,215.54/123,111.28 = 48,928.42/x
3. Step 3: Cross multiply
   89,215.54x = 123,111.28 × 48,928.42
4. Step 4: Simplify right side
   89,215.54x = 6,023,640,414.58
5. Step 5: Solve for x
   x = 6,023,640,414.58/89,215.54
6. Step 6: Final answer
   x = 67,517.84