Finding the Fourth Proportional to 140,096.50, 209,959.58 and 51,264.48

Step by Step Solution

1. Step 1: Write the proportion equation
   140,096.50 : 209,959.58 = 51,264.48 : x
2. Step 2: Convert to fraction form
   140,096.50/209,959.58 = 51,264.48/x
3. Step 3: Cross multiply
   140,096.50x = 209,959.58 × 51,264.48
4. Step 4: Simplify right side
   140,096.50x = 10,763,468,689.72
5. Step 5: Solve for x
   x = 10,763,468,689.72/140,096.50
6. Step 6: Final answer
   x = 76,828.96