Finding the Fourth Proportional to 142,164.04, 213,092.92 and 72,048.80

Step by Step Solution

1. Step 1: Write the proportion equation
   142,164.04 : 213,092.92 = 72,048.80 : x
2. Step 2: Convert to fraction form
   142,164.04/213,092.92 = 72,048.80/x
3. Step 3: Cross multiply
   142,164.04x = 213,092.92 × 72,048.80
4. Step 4: Simplify right side
   142,164.04x = 15,353,089,174.50
5. Step 5: Solve for x
   x = 15,353,089,174.50/142,164.04
6. Step 6: Final answer
   x = 107,995.59