Finding the Fourth Proportional to 362,689.78, 500,516.42 and 199,364.10

Step by Step Solution

1. Step 1: Write the proportion equation
   362,689.78 : 500,516.42 = 199,364.10 : x
2. Step 2: Convert to fraction form
   362,689.78/500,516.42 = 199,364.10/x
3. Step 3: Cross multiply
   362,689.78x = 500,516.42 × 199,364.10
4. Step 4: Simplify right side
   362,689.78x = 99,785,005,608.52
5. Step 5: Solve for x
   x = 99,785,005,608.52/362,689.78
6. Step 6: Final answer
   x = 275,124.94