Finding the Fourth Proportional to 131,346.42, 197,048.45 and 42,608.89

Step by Step Solution

1. Step 1: Write the proportion equation
   131,346.42 : 197,048.45 = 42,608.89 : x
2. Step 2: Convert to fraction form
   131,346.42/197,048.45 = 42,608.89/x
3. Step 3: Cross multiply
   131,346.42x = 197,048.45 × 42,608.89
4. Step 4: Simplify right side
   131,346.42x = 8,396,015,730.72
5. Step 5: Solve for x
   x = 8,396,015,730.72/131,346.42
6. Step 6: Final answer
   x = 63,922.68