Finding the Fourth Proportional to 231,610.59, 318,959.37 and 199,082.61

Step by Step Solution

1. Step 1: Write the proportion equation
   231,610.59 : 318,959.37 = 199,082.61 : x
2. Step 2: Convert to fraction form
   231,610.59/318,959.37 = 199,082.61/x
3. Step 3: Cross multiply
   231,610.59x = 318,959.37 × 199,082.61
4. Step 4: Simplify right side
   231,610.59x = 63,499,263,863.56
5. Step 5: Solve for x
   x = 63,499,263,863.56/231,610.59
6. Step 6: Final answer
   x = 274,163.91