Finding the Fourth Proportional to 142,454.24, 213,564.24 and 83,143.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,454.24 : 213,564.24 = 83,143.52 : x
2. Step 2: Convert to fraction form
   142,454.24/213,564.24 = 83,143.52/x
3. Step 3: Cross multiply
   142,454.24x = 213,564.24 × 83,143.52
4. Step 4: Simplify right side
   142,454.24x = 17,756,482,659.72
5. Step 5: Solve for x
   x = 17,756,482,659.72/142,454.24
6. Step 6: Final answer
   x = 124,646.92