Finding the Fourth Proportional to 142,076.12, 196,057.38 and 88,359.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,076.12 : 196,057.38 = 88,359.62 : x
2. Step 2: Convert to fraction form
   142,076.12/196,057.38 = 88,359.62/x
3. Step 3: Cross multiply
   142,076.12x = 196,057.38 × 88,359.62
4. Step 4: Simplify right side
   142,076.12x = 17,323,555,595.00
5. Step 5: Solve for x
   x = 17,323,555,595.00/142,076.12
6. Step 6: Final answer
   x = 121,931.51