Finding the Fourth Proportional to 78,960.58, 108,930.60 and 47,110.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,960.58 : 108,930.60 = 47,110.96 : x
2. Step 2: Convert to fraction form
   78,960.58/108,930.60 = 47,110.96/x
3. Step 3: Cross multiply
   78,960.58x = 108,930.60 × 47,110.96
4. Step 4: Simplify right side
   78,960.58x = 5,131,825,139.38
5. Step 5: Solve for x
   x = 5,131,825,139.38/78,960.58
6. Step 6: Final answer
   x = 64,992.24