Finding the Fourth Proportional to 123,958.78, 185,834.52 and 57,446.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,958.78 : 185,834.52 = 57,446.56 : x
2. Step 2: Convert to fraction form
   123,958.78/185,834.52 = 57,446.56/x
3. Step 3: Cross multiply
   123,958.78x = 185,834.52 × 57,446.56
4. Step 4: Simplify right side
   123,958.78x = 10,675,553,903.25
5. Step 5: Solve for x
   x = 10,675,553,903.25/123,958.78
6. Step 6: Final answer
   x = 86,121.81