Finding the Fourth Proportional to 81,490.56, 112,456.77 and 49,659.54

Step by Step Solution

1. Step 1: Write the proportion equation
   81,490.56 : 112,456.77 = 49,659.54 : x
2. Step 2: Convert to fraction form
   81,490.56/112,456.77 = 49,659.54/x
3. Step 3: Cross multiply
   81,490.56x = 112,456.77 × 49,659.54
4. Step 4: Simplify right side
   81,490.56x = 5,584,551,468.09
5. Step 5: Solve for x
   x = 5,584,551,468.09/81,490.56
6. Step 6: Final answer
   x = 68,530.04