Finding the Fourth Proportional to 123,595.85, 170,563.59 and 72,610.71

Step by Step Solution

1. Step 1: Write the proportion equation
   123,595.85 : 170,563.59 = 72,610.71 : x
2. Step 2: Convert to fraction form
   123,595.85/170,563.59 = 72,610.71/x
3. Step 3: Cross multiply
   123,595.85x = 170,563.59 × 72,610.71
4. Step 4: Simplify right side
   123,595.85x = 12,384,742,730.44
5. Step 5: Solve for x
   x = 12,384,742,730.44/123,595.85
6. Step 6: Final answer
   x = 100,203.55