Finding the Fourth Proportional to 78,959.68, 108,959.76 and 43,150

Step by Step Solution

1. Step 1: Write the proportion equation
   78,959.68 : 108,959.76 = 43,150 : x
2. Step 2: Convert to fraction form
   78,959.68/108,959.76 = 43,150/x
3. Step 3: Cross multiply
   78,959.68x = 108,959.76 × 43,150
4. Step 4: Simplify right side
   78,959.68x = 4,701,613,644
5. Step 5: Solve for x
   x = 4,701,613,644/78,959.68
6. Step 6: Final answer
   x = 59,544.49