Finding the Fourth Proportional to 142,024.46, 196,064.78 and 88,326.78

Step by Step Solution

1. Step 1: Write the proportion equation
   142,024.46 : 196,064.78 = 88,326.78 : x
2. Step 2: Convert to fraction form
   142,024.46/196,064.78 = 88,326.78/x
3. Step 3: Cross multiply
   142,024.46x = 196,064.78 × 88,326.78
4. Step 4: Simplify right side
   142,024.46x = 17,317,770,247.17
5. Step 5: Solve for x
   x = 17,317,770,247.17/142,024.46
6. Step 6: Final answer
   x = 121,935.13