Finding the Fourth Proportional to 297,968.10, 410,793.48 and 202,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   297,968.10 : 410,793.48 = 202,308.72 : x
2. Step 2: Convert to fraction form
   297,968.10/410,793.48 = 202,308.72/x
3. Step 3: Cross multiply
   297,968.10x = 410,793.48 × 202,308.72
4. Step 4: Simplify right side
   297,968.10x = 83,107,103,123.15
5. Step 5: Solve for x
   x = 83,107,103,123.15/297,968.10
6. Step 6: Final answer
   x = 278,912.75