Finding the Fourth Proportional to 195,404.72, 269,658.45 and 105,980.72

Step by Step Solution

1. Step 1: Write the proportion equation
   195,404.72 : 269,658.45 = 105,980.72 : x
2. Step 2: Convert to fraction form
   195,404.72/269,658.45 = 105,980.72/x
3. Step 3: Cross multiply
   195,404.72x = 269,658.45 × 105,980.72
4. Step 4: Simplify right side
   195,404.72x = 28,578,595,336.79
5. Step 5: Solve for x
   x = 28,578,595,336.79/195,404.72
6. Step 6: Final answer
   x = 146,253.36