Finding the Fourth Proportional to 142,023.78, 196,063.83 and 88,326.09

Step by Step Solution

1. Step 1: Write the proportion equation
   142,023.78 : 196,063.83 = 88,326.09 : x
2. Step 2: Convert to fraction form
   142,023.78/196,063.83 = 88,326.09/x
3. Step 3: Cross multiply
   142,023.78x = 196,063.83 × 88,326.09
4. Step 4: Simplify right side
   142,023.78x = 17,317,551,052.69
5. Step 5: Solve for x
   x = 17,317,551,052.69/142,023.78
6. Step 6: Final answer
   x = 121,934.17