Finding the Fourth Proportional to 300,872.78, 451,456.08 and 132,372.02

Step by Step Solution

1. Step 1: Write the proportion equation
   300,872.78 : 451,456.08 = 132,372.02 : x
2. Step 2: Convert to fraction form
   300,872.78/451,456.08 = 132,372.02/x
3. Step 3: Cross multiply
   300,872.78x = 451,456.08 × 132,372.02
4. Step 4: Simplify right side
   300,872.78x = 59,760,154,627.72
5. Step 5: Solve for x
   x = 59,760,154,627.72/300,872.78
6. Step 6: Final answer
   x = 198,622.67