Finding the Fourth Proportional to 78,946.96, 108,946.83 and 42,648.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,946.96 : 108,946.83 = 42,648.42 : x
2. Step 2: Convert to fraction form
   78,946.96/108,946.83 = 42,648.42/x
3. Step 3: Cross multiply
   78,946.96x = 108,946.83 × 42,648.42
4. Step 4: Simplify right side
   78,946.96x = 4,646,410,163.51
5. Step 5: Solve for x
   x = 4,646,410,163.51/78,946.96
6. Step 6: Final answer
   x = 58,854.83