Finding the Fourth Proportional to 142,053.12, 196,025.67 and 88,336.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,053.12 : 196,025.67 = 88,336.62 : x
2. Step 2: Convert to fraction form
   142,053.12/196,025.67 = 88,336.62/x
3. Step 3: Cross multiply
   142,053.12x = 196,025.67 × 88,336.62
4. Step 4: Simplify right side
   142,053.12x = 17,316,245,121.04
5. Step 5: Solve for x
   x = 17,316,245,121.04/142,053.12
6. Step 6: Final answer
   x = 121,899.79