Finding the Fourth Proportional to 142,825.85, 197,112.43 and 91,960.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,825.85 : 197,112.43 = 91,960.10 : x
2. Step 2: Convert to fraction form
   142,825.85/197,112.43 = 91,960.10/x
3. Step 3: Cross multiply
   142,825.85x = 197,112.43 × 91,960.10
4. Step 4: Simplify right side
   142,825.85x = 18,126,479,548.10
5. Step 5: Solve for x
   x = 18,126,479,548.10/142,825.85
6. Step 6: Final answer
   x = 126,913.16