Finding the Fourth Proportional to 78,811.92, 118,239.89 and 43,776.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,811.92 : 118,239.89 = 43,776.18 : x
2. Step 2: Convert to fraction form
   78,811.92/118,239.89 = 43,776.18/x
3. Step 3: Cross multiply
   78,811.92x = 118,239.89 × 43,776.18
4. Step 4: Simplify right side
   78,811.92x = 5,176,090,488.94
5. Step 5: Solve for x
   x = 5,176,090,488.94/78,811.92
6. Step 6: Final answer
   x = 65,676.49