Finding the Fourth Proportional to 103,714.10, 155,182.35 and 68,722.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,714.10 : 155,182.35 = 68,722.10 : x
2. Step 2: Convert to fraction form
   103,714.10/155,182.35 = 68,722.10/x
3. Step 3: Cross multiply
   103,714.10x = 155,182.35 × 68,722.10
4. Step 4: Simplify right side
   103,714.10x = 10,664,456,974.94
5. Step 5: Solve for x
   x = 10,664,456,974.94/103,714.10
6. Step 6: Final answer
   x = 102,825.53