Finding the Fourth Proportional to 142,024.12, 213,007.56 and 52,036.18

Step by Step Solution

1. Step 1: Write the proportion equation
   142,024.12 : 213,007.56 = 52,036.18 : x
2. Step 2: Convert to fraction form
   142,024.12/213,007.56 = 52,036.18/x
3. Step 3: Cross multiply
   142,024.12x = 213,007.56 × 52,036.18
4. Step 4: Simplify right side
   142,024.12x = 11,084,099,733.52
5. Step 5: Solve for x
   x = 11,084,099,733.52/142,024.12
6. Step 6: Final answer
   x = 78,043.78