Finding the Fourth Proportional to 452,405.82, 678,701.89 and 132,568.09

Step by Step Solution

1. Step 1: Write the proportion equation
   452,405.82 : 678,701.89 = 132,568.09 : x
2. Step 2: Convert to fraction form
   452,405.82/678,701.89 = 132,568.09/x
3. Step 3: Cross multiply
   452,405.82x = 678,701.89 × 132,568.09
4. Step 4: Simplify right side
   452,405.82x = 89,974,215,264.87
5. Step 5: Solve for x
   x = 89,974,215,264.87/452,405.82
6. Step 6: Final answer
   x = 198,879.44