Finding the Fourth Proportional to 199,085.10, 298,714.05 and 100,589.10

Step by Step Solution

1. Step 1: Write the proportion equation
   199,085.10 : 298,714.05 = 100,589.10 : x
2. Step 2: Convert to fraction form
   199,085.10/298,714.05 = 100,589.10/x
3. Step 3: Cross multiply
   199,085.10x = 298,714.05 × 100,589.10
4. Step 4: Simplify right side
   199,085.10x = 30,047,377,446.86
5. Step 5: Solve for x
   x = 30,047,377,446.86/199,085.10
6. Step 6: Final answer
   x = 150,927.30