Finding the Fourth Proportional to 131,738.72, 197,633.59 and 42,968.39

Step by Step Solution

1. Step 1: Write the proportion equation
   131,738.72 : 197,633.59 = 42,968.39 : x
2. Step 2: Convert to fraction form
   131,738.72/197,633.59 = 42,968.39/x
3. Step 3: Cross multiply
   131,738.72x = 197,633.59 × 42,968.39
4. Step 4: Simplify right side
   131,738.72x = 8,491,996,076.63
5. Step 5: Solve for x
   x = 8,491,996,076.63/131,738.72
6. Step 6: Final answer
   x = 64,460.90