Finding the Fourth Proportional to 55,559.69, 76,671.79 and 30,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,559.69 : 76,671.79 = 30,065.50 : x
2. Step 2: Convert to fraction form
   55,559.69/76,671.79 = 30,065.50/x
3. Step 3: Cross multiply
   55,559.69x = 76,671.79 × 30,065.50
4. Step 4: Simplify right side
   55,559.69x = 2,305,175,168.56
5. Step 5: Solve for x
   x = 2,305,175,168.56/55,559.69
6. Step 6: Final answer
   x = 41,490.07