Finding the Fourth Proportional to 78,956.55, 108,959.82 and 43,146.79

Step by Step Solution

1. Step 1: Write the proportion equation
   78,956.55 : 108,959.82 = 43,146.79 : x
2. Step 2: Convert to fraction form
   78,956.55/108,959.82 = 43,146.79/x
3. Step 3: Cross multiply
   78,956.55x = 108,959.82 × 43,146.79
4. Step 4: Simplify right side
   78,956.55x = 4,701,266,037.78
5. Step 5: Solve for x
   x = 4,701,266,037.78/78,956.55
6. Step 6: Final answer
   x = 59,542.45