Finding the Fourth Proportional to 142,404.55, 196,517.76 and 80,310.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,404.55 : 196,517.76 = 80,310.10 : x
2. Step 2: Convert to fraction form
   142,404.55/196,517.76 = 80,310.10/x
3. Step 3: Cross multiply
   142,404.55x = 196,517.76 × 80,310.10
4. Step 4: Simplify right side
   142,404.55x = 15,782,360,985.13
5. Step 5: Solve for x
   x = 15,782,360,985.13/142,404.55
6. Step 6: Final answer
   x = 110,827.65