Finding the Fourth Proportional to 131,030.20, 196,578.42 and 52,144.12

Step by Step Solution

1. Step 1: Write the proportion equation
   131,030.20 : 196,578.42 = 52,144.12 : x
2. Step 2: Convert to fraction form
   131,030.20/196,578.42 = 52,144.12/x
3. Step 3: Cross multiply
   131,030.20x = 196,578.42 × 52,144.12
4. Step 4: Simplify right side
   131,030.20x = 10,250,408,721.89
5. Step 5: Solve for x
   x = 10,250,408,721.89/131,030.20
6. Step 6: Final answer
   x = 78,229.36