Finding the Fourth Proportional to 55,780.27, 76,975.81 and 30,629.59

Step by Step Solution

1. Step 1: Write the proportion equation
   55,780.27 : 76,975.81 = 30,629.59 : x
2. Step 2: Convert to fraction form
   55,780.27/76,975.81 = 30,629.59/x
3. Step 3: Cross multiply
   55,780.27x = 76,975.81 × 30,629.59
4. Step 4: Simplify right side
   55,780.27x = 2,357,737,500.22
5. Step 5: Solve for x
   x = 2,357,737,500.22/55,780.27
6. Step 6: Final answer
   x = 42,268.31