Finding the Fourth Proportional to 89,615.25, 123,664.79 and 49,328.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,615.25 : 123,664.79 = 49,328.18 : x
2. Step 2: Convert to fraction form
   89,615.25/123,664.79 = 49,328.18/x
3. Step 3: Cross multiply
   89,615.25x = 123,664.79 × 49,328.18
4. Step 4: Simplify right side
   89,615.25x = 6,100,159,020.78
5. Step 5: Solve for x
   x = 6,100,159,020.78/89,615.25
6. Step 6: Final answer
   x = 68,070.55