Finding the Fourth Proportional to 89,455.73, 123,449.58 and 49,170.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,455.73 : 123,449.58 = 49,170.15 : x
2. Step 2: Convert to fraction form
   89,455.73/123,449.58 = 49,170.15/x
3. Step 3: Cross multiply
   89,455.73x = 123,449.58 × 49,170.15
4. Step 4: Simplify right side
   89,455.73x = 6,070,034,366.04
5. Step 5: Solve for x
   x = 6,070,034,366.04/89,455.73
6. Step 6: Final answer
   x = 67,855.18