Finding the Fourth Proportional to 131,981.04, 182,086.10 and 86,683.56

Step by Step Solution

1. Step 1: Write the proportion equation
   131,981.04 : 182,086.10 = 86,683.56 : x
2. Step 2: Convert to fraction form
   131,981.04/182,086.10 = 86,683.56/x
3. Step 3: Cross multiply
   131,981.04x = 182,086.10 × 86,683.56
4. Step 4: Simplify right side
   131,981.04x = 15,783,870,941.10
5. Step 5: Solve for x
   x = 15,783,870,941.10/131,981.04
6. Step 6: Final answer
   x = 119,591.96