Finding the Fourth Proportional to 78,422.99, 117,568.35 and 34,016.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,422.99 : 117,568.35 = 34,016.31 : x
2. Step 2: Convert to fraction form
   78,422.99/117,568.35 = 34,016.31/x
3. Step 3: Cross multiply
   78,422.99x = 117,568.35 × 34,016.31
4. Step 4: Simplify right side
   78,422.99x = 3,999,241,439.79
5. Step 5: Solve for x
   x = 3,999,241,439.79/78,422.99
6. Step 6: Final answer
   x = 50,995.78