Finding the Fourth Proportional to 297,561.72, 410,516.46 and 190,103.88

Step by Step Solution

1. Step 1: Write the proportion equation
   297,561.72 : 410,516.46 = 190,103.88 : x
2. Step 2: Convert to fraction form
   297,561.72/410,516.46 = 190,103.88/x
3. Step 3: Cross multiply
   297,561.72x = 410,516.46 × 190,103.88
4. Step 4: Simplify right side
   297,561.72x = 78,040,771,849.86
5. Step 5: Solve for x
   x = 78,040,771,849.86/297,561.72
6. Step 6: Final answer
   x = 262,267.51