Finding the Fourth Proportional to 231,676, 319,710.72 and 131,074

Step by Step Solution

1. Step 1: Write the proportion equation
   231,676 : 319,710.72 = 131,074 : x
2. Step 2: Convert to fraction form
   231,676/319,710.72 = 131,074/x
3. Step 3: Cross multiply
   231,676x = 319,710.72 × 131,074
4. Step 4: Simplify right side
   231,676x = 41,905,762,913.28
5. Step 5: Solve for x
   x = 41,905,762,913.28/231,676
6. Step 6: Final answer
   x = 180,880.90