Finding the Fourth Proportional to 55,779.50, 76,976.25 and 30,629.54

Step by Step Solution

1. Step 1: Write the proportion equation
   55,779.50 : 76,976.25 = 30,629.54 : x
2. Step 2: Convert to fraction form
   55,779.50/76,976.25 = 30,629.54/x
3. Step 3: Cross multiply
   55,779.50x = 76,976.25 × 30,629.54
4. Step 4: Simplify right side
   55,779.50x = 2,357,747,128.43
5. Step 5: Solve for x
   x = 2,357,747,128.43/55,779.50
6. Step 6: Final answer
   x = 42,269.06