Finding the Fourth Proportional to 131,772.47, 197,695.61 and 52,942.05

Step by Step Solution

1. Step 1: Write the proportion equation
   131,772.47 : 197,695.61 = 52,942.05 : x
2. Step 2: Convert to fraction form
   131,772.47/197,695.61 = 52,942.05/x
3. Step 3: Cross multiply
   131,772.47x = 197,695.61 × 52,942.05
4. Step 4: Simplify right side
   131,772.47x = 10,466,410,604.69
5. Step 5: Solve for x
   x = 10,466,410,604.69/131,772.47
6. Step 6: Final answer
   x = 79,427.90