Finding the Fourth Proportional to 78,968.69, 108,976.54 and 43,158.70

Step by Step Solution

1. Step 1: Write the proportion equation
   78,968.69 : 108,976.54 = 43,158.70 : x
2. Step 2: Convert to fraction form
   78,968.69/108,976.54 = 43,158.70/x
3. Step 3: Cross multiply
   78,968.69x = 108,976.54 × 43,158.70
4. Step 4: Simplify right side
   78,968.69x = 4,703,285,036.22
5. Step 5: Solve for x
   x = 4,703,285,036.22/78,968.69
6. Step 6: Final answer
   x = 59,558.86