Finding the Fourth Proportional to 106,960.69, 160,443.06 and 40,432.15

Step by Step Solution

1. Step 1: Write the proportion equation
   106,960.69 : 160,443.06 = 40,432.15 : x
2. Step 2: Convert to fraction form
   106,960.69/160,443.06 = 40,432.15/x
3. Step 3: Cross multiply
   106,960.69x = 160,443.06 × 40,432.15
4. Step 4: Simplify right side
   106,960.69x = 6,487,057,868.38
5. Step 5: Solve for x
   x = 6,487,057,868.38/106,960.69
6. Step 6: Final answer
   x = 60,648.99