Finding the Fourth Proportional to 123,912.75, 185,872.77 and 30,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,912.75 : 185,872.77 = 30,418.50 : x
2. Step 2: Convert to fraction form
   123,912.75/185,872.77 = 30,418.50/x
3. Step 3: Cross multiply
   123,912.75x = 185,872.77 × 30,418.50
4. Step 4: Simplify right side
   123,912.75x = 5,653,970,854.25
5. Step 5: Solve for x
   x = 5,653,970,854.25/123,912.75
6. Step 6: Final answer
   x = 45,628.64