Finding the Fourth Proportional to 142,074.94, 196,063.01 and 78,412.29

Step by Step Solution

1. Step 1: Write the proportion equation
   142,074.94 : 196,063.01 = 78,412.29 : x
2. Step 2: Convert to fraction form
   142,074.94/196,063.01 = 78,412.29/x
3. Step 3: Cross multiply
   142,074.94x = 196,063.01 × 78,412.29
4. Step 4: Simplify right side
   142,074.94x = 15,373,749,598.39
5. Step 5: Solve for x
   x = 15,373,749,598.39/142,074.94
6. Step 6: Final answer
   x = 108,208.74