Finding the Fourth Proportional to 78,680.44, 118,042.56 and 34,311.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,680.44 : 118,042.56 = 34,311.12 : x
2. Step 2: Convert to fraction form
   78,680.44/118,042.56 = 34,311.12/x
3. Step 3: Cross multiply
   78,680.44x = 118,042.56 × 34,311.12
4. Step 4: Simplify right side
   78,680.44x = 4,050,172,441.27
5. Step 5: Solve for x
   x = 4,050,172,441.27/78,680.44
6. Step 6: Final answer
   x = 51,476.23