Finding the Fourth Proportional to 282,429.69, 389,752.52 and 155,105.29

Step by Step Solution

1. Step 1: Write the proportion equation
   282,429.69 : 389,752.52 = 155,105.29 : x
2. Step 2: Convert to fraction form
   282,429.69/389,752.52 = 155,105.29/x
3. Step 3: Cross multiply
   282,429.69x = 389,752.52 × 155,105.29
4. Step 4: Simplify right side
   282,429.69x = 60,452,676,526.77
5. Step 5: Solve for x
   x = 60,452,676,526.77/282,429.69
6. Step 6: Final answer
   x = 214,045.05