Finding the Fourth Proportional to 78,665.92, 118,010.51 and 28,734.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,665.92 : 118,010.51 = 28,734.34 : x
2. Step 2: Convert to fraction form
   78,665.92/118,010.51 = 28,734.34/x
3. Step 3: Cross multiply
   78,665.92x = 118,010.51 × 28,734.34
4. Step 4: Simplify right side
   78,665.92x = 3,390,953,861.69
5. Step 5: Solve for x
   x = 3,390,953,861.69/78,665.92
6. Step 6: Final answer
   x = 43,105.76