Finding the Fourth Proportional to 282,006.82, 389,167.30 and 154,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   282,006.82 : 389,167.30 = 154,681.50 : x
2. Step 2: Convert to fraction form
   282,006.82/389,167.30 = 154,681.50/x
3. Step 3: Cross multiply
   282,006.82x = 389,167.30 × 154,681.50
4. Step 4: Simplify right side
   282,006.82x = 60,196,981,714.95
5. Step 5: Solve for x
   x = 60,196,981,714.95/282,006.82
6. Step 6: Final answer
   x = 213,459.31