Finding the Fourth Proportional to 78,419.69, 117,563.41 and 34,013

Step by Step Solution

1. Step 1: Write the proportion equation
   78,419.69 : 117,563.41 = 34,013 : x
2. Step 2: Convert to fraction form
   78,419.69/117,563.41 = 34,013/x
3. Step 3: Cross multiply
   78,419.69x = 117,563.41 × 34,013
4. Step 4: Simplify right side
   78,419.69x = 3,998,684,264.33
5. Step 5: Solve for x
   x = 3,998,684,264.33/78,419.69
6. Step 6: Final answer
   x = 50,990.82