Finding the Fourth Proportional to 170,789.61, 256,196.72 and 49,205.17

Step by Step Solution

1. Step 1: Write the proportion equation
   170,789.61 : 256,196.72 = 49,205.17 : x
2. Step 2: Convert to fraction form
   170,789.61/256,196.72 = 49,205.17/x
3. Step 3: Cross multiply
   170,789.61x = 256,196.72 × 49,205.17
4. Step 4: Simplify right side
   170,789.61x = 12,606,203,604.30
5. Step 5: Solve for x
   x = 12,606,203,604.30/170,789.61
6. Step 6: Final answer
   x = 73,811.30