Finding the Fourth Proportional to 142,453.24, 213,562.74 and 83,142.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,453.24 : 213,562.74 = 83,142.52 : x
2. Step 2: Convert to fraction form
   142,453.24/213,562.74 = 83,142.52/x
3. Step 3: Cross multiply
   142,453.24x = 213,562.74 × 83,142.52
4. Step 4: Simplify right side
   142,453.24x = 17,756,144,381.70
5. Step 5: Solve for x
   x = 17,756,144,381.70/142,453.24
6. Step 6: Final answer
   x = 124,645.42