Finding the Fourth Proportional to 78,768.54, 108,701.46 and 42,958.44

Step by Step Solution

1. Step 1: Write the proportion equation
   78,768.54 : 108,701.46 = 42,958.44 : x
2. Step 2: Convert to fraction form
   78,768.54/108,701.46 = 42,958.44/x
3. Step 3: Cross multiply
   78,768.54x = 108,701.46 × 42,958.44
4. Step 4: Simplify right side
   78,768.54x = 4,669,645,147.32
5. Step 5: Solve for x
   x = 4,669,645,147.32/78,768.54
6. Step 6: Final answer
   x = 59,283.12