Finding the Fourth Proportional to 142,496.70, 196,647.39 and 88,803.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,496.70 : 196,647.39 = 88,803.42 : x
2. Step 2: Convert to fraction form
   142,496.70/196,647.39 = 88,803.42/x
3. Step 3: Cross multiply
   142,496.70x = 196,647.39 × 88,803.42
4. Step 4: Simplify right side
   142,496.70x = 17,462,960,766.07
5. Step 5: Solve for x
   x = 17,462,960,766.07/142,496.70
6. Step 6: Final answer
   x = 122,549.93