Finding the Fourth Proportional to 89,772.06, 123,886.98 and 49,485.54

Step by Step Solution

1. Step 1: Write the proportion equation
   89,772.06 : 123,886.98 = 49,485.54 : x
2. Step 2: Convert to fraction form
   89,772.06/123,886.98 = 49,485.54/x
3. Step 3: Cross multiply
   89,772.06x = 123,886.98 × 49,485.54
4. Step 4: Simplify right side
   89,772.06x = 6,130,614,104.27
5. Step 5: Solve for x
   x = 6,130,614,104.27/89,772.06
6. Step 6: Final answer
   x = 68,290.89