Finding the Fourth Proportional to 142,086.48, 213,060.60 and 82,941.36

Step by Step Solution

1. Step 1: Write the proportion equation
   142,086.48 : 213,060.60 = 82,941.36 : x
2. Step 2: Convert to fraction form
   142,086.48/213,060.60 = 82,941.36/x
3. Step 3: Cross multiply
   142,086.48x = 213,060.60 × 82,941.36
4. Step 4: Simplify right side
   142,086.48x = 17,671,535,926.42
5. Step 5: Solve for x
   x = 17,671,535,926.42/142,086.48
6. Step 6: Final answer
   x = 124,371.69