Finding the Fourth Proportional to 78,716.50, 118,016.42 and 47,544.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,716.50 : 118,016.42 = 47,544.46 : x
2. Step 2: Convert to fraction form
   78,716.50/118,016.42 = 47,544.46/x
3. Step 3: Cross multiply
   78,716.50x = 118,016.42 × 47,544.46
4. Step 4: Simplify right side
   78,716.50x = 5,611,026,960.03
5. Step 5: Solve for x
   x = 5,611,026,960.03/78,716.50
6. Step 6: Final answer
   x = 71,281.46