Finding the Fourth Proportional to 142,096.74, 213,145.65 and 89,375.46

Step by Step Solution

1. Step 1: Write the proportion equation
   142,096.74 : 213,145.65 = 89,375.46 : x
2. Step 2: Convert to fraction form
   142,096.74/213,145.65 = 89,375.46/x
3. Step 3: Cross multiply
   142,096.74x = 213,145.65 × 89,375.46
4. Step 4: Simplify right side
   142,096.74x = 19,049,990,515.75
5. Step 5: Solve for x
   x = 19,049,990,515.75/142,096.74
6. Step 6: Final answer
   x = 134,063.53