Finding the Fourth Proportional to 55,718.50, 76,891.54 and 30,568.54

Step by Step Solution

1. Step 1: Write the proportion equation
   55,718.50 : 76,891.54 = 30,568.54 : x
2. Step 2: Convert to fraction form
   55,718.50/76,891.54 = 30,568.54/x
3. Step 3: Cross multiply
   55,718.50x = 76,891.54 × 30,568.54
4. Step 4: Simplify right side
   55,718.50x = 2,350,462,116.15
5. Step 5: Solve for x
   x = 2,350,462,116.15/55,718.50
6. Step 6: Final answer
   x = 42,184.59