Finding the Fourth Proportional to 54,315.77, 74,958.89 and 30,450.06

Step by Step Solution

1. Step 1: Write the proportion equation
   54,315.77 : 74,958.89 = 30,450.06 : x
2. Step 2: Convert to fraction form
   54,315.77/74,958.89 = 30,450.06/x
3. Step 3: Cross multiply
   54,315.77x = 74,958.89 × 30,450.06
4. Step 4: Simplify right side
   54,315.77x = 2,282,502,545.78
5. Step 5: Solve for x
   x = 2,282,502,545.78/54,315.77
6. Step 6: Final answer
   x = 42,022.84