Finding the Fourth Proportional to 329,715.05, 494,567.17 and 105,072.48

Step by Step Solution

1. Step 1: Write the proportion equation
   329,715.05 : 494,567.17 = 105,072.48 : x
2. Step 2: Convert to fraction form
   329,715.05/494,567.17 = 105,072.48/x
3. Step 3: Cross multiply
   329,715.05x = 494,567.17 × 105,072.48
4. Step 4: Simplify right side
   329,715.05x = 51,965,398,815.80
5. Step 5: Solve for x
   x = 51,965,398,815.80/329,715.05
6. Step 6: Final answer
   x = 157,607.00