Finding the Fourth Proportional to 142,243.30, 196,287.87 and 88,526.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,243.30 : 196,287.87 = 88,526.62 : x
2. Step 2: Convert to fraction form
   142,243.30/196,287.87 = 88,526.62/x
3. Step 3: Cross multiply
   142,243.30x = 196,287.87 × 88,526.62
4. Step 4: Simplify right side
   142,243.30x = 17,376,701,678.10
5. Step 5: Solve for x
   x = 17,376,701,678.10/142,243.30
6. Step 6: Final answer
   x = 122,161.83