Finding the Fourth Proportional to 265,898.29, 398,514.83 and 132,815.69

Step by Step Solution

1. Step 1: Write the proportion equation
   265,898.29 : 398,514.83 = 132,815.69 : x
2. Step 2: Convert to fraction form
   265,898.29/398,514.83 = 132,815.69/x
3. Step 3: Cross multiply
   265,898.29x = 398,514.83 × 132,815.69
4. Step 4: Simplify right side
   265,898.29x = 52,929,022,453.89
5. Step 5: Solve for x
   x = 52,929,022,453.89/265,898.29
6. Step 6: Final answer
   x = 199,057.40