Finding the Fourth Proportional to 78,956.56, 108,956.82 and 43,147.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,956.56 : 108,956.82 = 43,147.78 : x
2. Step 2: Convert to fraction form
   78,956.56/108,956.82 = 43,147.78/x
3. Step 3: Cross multiply
   78,956.56x = 108,956.82 × 43,147.78
4. Step 4: Simplify right side
   78,956.56x = 4,701,244,898.86
5. Step 5: Solve for x
   x = 4,701,244,898.86/78,956.56
6. Step 6: Final answer
   x = 59,542.17