Finding the Fourth Proportional to 282,443.52, 389,770.52 and 153,380.88

Step by Step Solution

1. Step 1: Write the proportion equation
   282,443.52 : 389,770.52 = 153,380.88 : x
2. Step 2: Convert to fraction form
   282,443.52/389,770.52 = 153,380.88/x
3. Step 3: Cross multiply
   282,443.52x = 389,770.52 × 153,380.88
4. Step 4: Simplify right side
   282,443.52x = 59,783,345,355.66
5. Step 5: Solve for x
   x = 59,783,345,355.66/282,443.52
6. Step 6: Final answer
   x = 211,664.78