Finding the Fourth Proportional to 51,108.72, 76,672.82 and 17,838.28

Step by Step Solution

1. Step 1: Write the proportion equation
   51,108.72 : 76,672.82 = 17,838.28 : x
2. Step 2: Convert to fraction form
   51,108.72/76,672.82 = 17,838.28/x
3. Step 3: Cross multiply
   51,108.72x = 76,672.82 × 17,838.28
4. Step 4: Simplify right side
   51,108.72x = 1,367,711,142.36
5. Step 5: Solve for x
   x = 1,367,711,142.36/51,108.72
6. Step 6: Final answer
   x = 26,760.82