Finding the Fourth Proportional to 78,958.56, 108,959.58 and 43,149.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,958.56 : 108,959.58 = 43,149.78 : x
2. Step 2: Convert to fraction form
   78,958.56/108,959.58 = 43,149.78/x
3. Step 3: Cross multiply
   78,958.56x = 108,959.58 × 43,149.78
4. Step 4: Simplify right side
   78,958.56x = 4,701,581,905.89
5. Step 5: Solve for x
   x = 4,701,581,905.89/78,958.56
6. Step 6: Final answer
   x = 59,544.93