Finding the Fourth Proportional to 123,745.82, 170,640.15 and 73,435.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,745.82 : 170,640.15 = 73,435.10 : x
2. Step 2: Convert to fraction form
   123,745.82/170,640.15 = 73,435.10/x
3. Step 3: Cross multiply
   123,745.82x = 170,640.15 × 73,435.10
4. Step 4: Simplify right side
   123,745.82x = 12,530,976,479.27
5. Step 5: Solve for x
   x = 12,530,976,479.27/123,745.82
6. Step 6: Final answer
   x = 101,263.84