Finding the Fourth Proportional to 55,601.23, 76,728.60 and 31,724.05

Step by Step Solution

1. Step 1: Write the proportion equation
   55,601.23 : 76,728.60 = 31,724.05 : x
2. Step 2: Convert to fraction form
   55,601.23/76,728.60 = 31,724.05/x
3. Step 3: Cross multiply
   55,601.23x = 76,728.60 × 31,724.05
4. Step 4: Simplify right side
   55,601.23x = 2,434,141,942.83
5. Step 5: Solve for x
   x = 2,434,141,942.83/55,601.23
6. Step 6: Final answer
   x = 43,778.56