Finding the Fourth Proportional to 82,168.20, 113,361.72 and 60,709.62

Step by Step Solution

1. Step 1: Write the proportion equation
   82,168.20 : 113,361.72 = 60,709.62 : x
2. Step 2: Convert to fraction form
   82,168.20/113,361.72 = 60,709.62/x
3. Step 3: Cross multiply
   82,168.20x = 113,361.72 × 60,709.62
4. Step 4: Simplify right side
   82,168.20x = 6,882,146,943.75
5. Step 5: Solve for x
   x = 6,882,146,943.75/82,168.20
6. Step 6: Final answer
   x = 83,756.82