Finding the Fourth Proportional to 142,168.04, 213,146.72 and 67,200.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,168.04 : 213,146.72 = 67,200.59 : x
2. Step 2: Convert to fraction form
   142,168.04/213,146.72 = 67,200.59/x
3. Step 3: Cross multiply
   142,168.04x = 213,146.72 × 67,200.59
4. Step 4: Simplify right side
   142,168.04x = 14,323,584,968.48
5. Step 5: Solve for x
   x = 14,323,584,968.48/142,168.04
6. Step 6: Final answer
   x = 100,751.09