Finding the Fourth Proportional to 57,223.69, 78,949.79 and 34,554.07

Step by Step Solution

1. Step 1: Write the proportion equation
   57,223.69 : 78,949.79 = 34,554.07 : x
2. Step 2: Convert to fraction form
   57,223.69/78,949.79 = 34,554.07/x
3. Step 3: Cross multiply
   57,223.69x = 78,949.79 × 34,554.07
4. Step 4: Simplify right side
   57,223.69x = 2,728,036,403.59
5. Step 5: Solve for x
   x = 2,728,036,403.59/57,223.69
6. Step 6: Final answer
   x = 47,673.20