Finding the Fourth Proportional to 142,056.59, 196,059.69 and 88,358.85

Step by Step Solution

1. Step 1: Write the proportion equation
   142,056.59 : 196,059.69 = 88,358.85 : x
2. Step 2: Convert to fraction form
   142,056.59/196,059.69 = 88,358.85/x
3. Step 3: Cross multiply
   142,056.59x = 196,059.69 × 88,358.85
4. Step 4: Simplify right side
   142,056.59x = 17,323,608,739.76
5. Step 5: Solve for x
   x = 17,323,608,739.76/142,056.59
6. Step 6: Final answer
   x = 121,948.65