Finding the Fourth Proportional to 142,533.46, 196,693.27 and 78,871.24

Step by Step Solution

1. Step 1: Write the proportion equation
   142,533.46 : 196,693.27 = 78,871.24 : x
2. Step 2: Convert to fraction form
   142,533.46/196,693.27 = 78,871.24/x
3. Step 3: Cross multiply
   142,533.46x = 196,693.27 × 78,871.24
4. Step 4: Simplify right side
   142,533.46x = 15,513,442,104.55
5. Step 5: Solve for x
   x = 15,513,442,104.55/142,533.46
6. Step 6: Final answer
   x = 108,840.70