Finding the Fourth Proportional to 42,448.05, 58,584.87 and 30,550.77

Step by Step Solution

1. Step 1: Write the proportion equation
   42,448.05 : 58,584.87 = 30,550.77 : x
2. Step 2: Convert to fraction form
   42,448.05/58,584.87 = 30,550.77/x
3. Step 3: Cross multiply
   42,448.05x = 58,584.87 × 30,550.77
4. Step 4: Simplify right side
   42,448.05x = 1,789,812,888.85
5. Step 5: Solve for x
   x = 1,789,812,888.85/42,448.05
6. Step 6: Final answer
   x = 42,164.78