Finding the Fourth Proportional to 142,242.27, 196,277.60 and 78,576.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,242.27 : 196,277.60 = 78,576.27 : x
2. Step 2: Convert to fraction form
   142,242.27/196,277.60 = 78,576.27/x
3. Step 3: Cross multiply
   142,242.27x = 196,277.60 × 78,576.27
4. Step 4: Simplify right side
   142,242.27x = 15,422,761,299.67
5. Step 5: Solve for x
   x = 15,422,761,299.67/142,242.27
6. Step 6: Final answer
   x = 108,426.01