Finding the Fourth Proportional to 89,454.25, 123,449.69 and 49,171.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,454.25 : 123,449.69 = 49,171.12 : x
2. Step 2: Convert to fraction form
   89,454.25/123,449.69 = 49,171.12/x
3. Step 3: Cross multiply
   89,454.25x = 123,449.69 × 49,171.12
4. Step 4: Simplify right side
   89,454.25x = 6,070,159,520.95
5. Step 5: Solve for x
   x = 6,070,159,520.95/89,454.25
6. Step 6: Final answer
   x = 67,857.70