Finding the Fourth Proportional to 80,144.29, 120,110.22 and 42,623.57

Step by Step Solution

1. Step 1: Write the proportion equation
   80,144.29 : 120,110.22 = 42,623.57 : x
2. Step 2: Convert to fraction form
   80,144.29/120,110.22 = 42,623.57/x
3. Step 3: Cross multiply
   80,144.29x = 120,110.22 × 42,623.57
4. Step 4: Simplify right side
   80,144.29x = 5,119,526,369.89
5. Step 5: Solve for x
   x = 5,119,526,369.89/80,144.29
6. Step 6: Final answer
   x = 63,878.87