Finding the Fourth Proportional to 78,456.38, 117,618.23 and 34,049.75

Step by Step Solution

1. Step 1: Write the proportion equation
   78,456.38 : 117,618.23 = 34,049.75 : x
2. Step 2: Convert to fraction form
   78,456.38/117,618.23 = 34,049.75/x
3. Step 3: Cross multiply
   78,456.38x = 117,618.23 × 34,049.75
4. Step 4: Simplify right side
   78,456.38x = 4,004,870,568.60
5. Step 5: Solve for x
   x = 4,004,870,568.60/78,456.38
6. Step 6: Final answer
   x = 51,045.83