Finding the Fourth Proportional to 142,042.48, 196,089.57 and 88,344.82

Step by Step Solution

1. Step 1: Write the proportion equation
   142,042.48 : 196,089.57 = 88,344.82 : x
2. Step 2: Convert to fraction form
   142,042.48/196,089.57 = 88,344.82/x
3. Step 3: Cross multiply
   142,042.48x = 196,089.57 × 88,344.82
4. Step 4: Simplify right side
   142,042.48x = 17,323,497,765.53
5. Step 5: Solve for x
   x = 17,323,497,765.53/142,042.48
6. Step 6: Final answer
   x = 121,959.98