Finding the Fourth Proportional to 131,568.42, 197,306.04 and 42,805.38

Step by Step Solution

1. Step 1: Write the proportion equation
   131,568.42 : 197,306.04 = 42,805.38 : x
2. Step 2: Convert to fraction form
   131,568.42/197,306.04 = 42,805.38/x
3. Step 3: Cross multiply
   131,568.42x = 197,306.04 × 42,805.38
4. Step 4: Simplify right side
   131,568.42x = 8,445,760,018.50
5. Step 5: Solve for x
   x = 8,445,760,018.50/131,568.42
6. Step 6: Final answer
   x = 64,192.91