Finding the Fourth Proportional to 142,074.12, 196,054.62 and 88,357.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,074.12 : 196,054.62 = 88,357.62 : x
2. Step 2: Convert to fraction form
   142,074.12/196,054.62 = 88,357.62/x
3. Step 3: Cross multiply
   142,074.12x = 196,054.62 × 88,357.62
4. Step 4: Simplify right side
   142,074.12x = 17,322,919,613.20
5. Step 5: Solve for x
   x = 17,322,919,613.20/142,074.12
6. Step 6: Final answer
   x = 121,928.75