Finding the Fourth Proportional to 105,692.82, 145,838.16 and 69,863.67

Step by Step Solution

1. Step 1: Write the proportion equation
   105,692.82 : 145,838.16 = 69,863.67 : x
2. Step 2: Convert to fraction form
   105,692.82/145,838.16 = 69,863.67/x
3. Step 3: Cross multiply
   105,692.82x = 145,838.16 × 69,863.67
4. Step 4: Simplify right side
   105,692.82x = 10,188,789,083.65
5. Step 5: Solve for x
   x = 10,188,789,083.65/105,692.82
6. Step 6: Final answer
   x = 96,400.01