Finding the Fourth Proportional to 55,357.75, 76,359.59 and 39,447.34

Step by Step Solution

1. Step 1: Write the proportion equation
   55,357.75 : 76,359.59 = 39,447.34 : x
2. Step 2: Convert to fraction form
   55,357.75/76,359.59 = 39,447.34/x
3. Step 3: Cross multiply
   55,357.75x = 76,359.59 × 39,447.34
4. Step 4: Simplify right side
   55,357.75x = 3,012,182,425.81
5. Step 5: Solve for x
   x = 3,012,182,425.81/55,357.75
6. Step 6: Final answer
   x = 54,413.03