Finding the Fourth Proportional to 142,575.91, 196,706.71 and 82,145.05

Step by Step Solution

1. Step 1: Write the proportion equation
   142,575.91 : 196,706.71 = 82,145.05 : x
2. Step 2: Convert to fraction form
   142,575.91/196,706.71 = 82,145.05/x
3. Step 3: Cross multiply
   142,575.91x = 196,706.71 × 82,145.05
4. Step 4: Simplify right side
   142,575.91x = 16,158,481,831.16
5. Step 5: Solve for x
   x = 16,158,481,831.16/142,575.91
6. Step 6: Final answer
   x = 113,332.48