Finding the Fourth Proportional to 263,404.86, 363,499.61 and 142,546.11

Step by Step Solution

1. Step 1: Write the proportion equation
   263,404.86 : 363,499.61 = 142,546.11 : x
2. Step 2: Convert to fraction form
   263,404.86/363,499.61 = 142,546.11/x
3. Step 3: Cross multiply
   263,404.86x = 363,499.61 × 142,546.11
4. Step 4: Simplify right side
   263,404.86x = 51,815,454,679.29
5. Step 5: Solve for x
   x = 51,815,454,679.29/263,404.86
6. Step 6: Final answer
   x = 196,714.12