Finding the Fourth Proportional to 131,687.37, 197,562.50 and 42,940.96

Step by Step Solution

1. Step 1: Write the proportion equation
   131,687.37 : 197,562.50 = 42,940.96 : x
2. Step 2: Convert to fraction form
   131,687.37/197,562.50 = 42,940.96/x
3. Step 3: Cross multiply
   131,687.37x = 197,562.50 × 42,940.96
4. Step 4: Simplify right side
   131,687.37x = 8,483,523,410
5. Step 5: Solve for x
   x = 8,483,523,410/131,687.37
6. Step 6: Final answer
   x = 64,421.69