Finding the Fourth Proportional to 142,233.16, 213,483.66 and 72,162.76

Step by Step Solution

1. Step 1: Write the proportion equation
   142,233.16 : 213,483.66 = 72,162.76 : x
2. Step 2: Convert to fraction form
   142,233.16/213,483.66 = 72,162.76/x
3. Step 3: Cross multiply
   142,233.16x = 213,483.66 × 72,162.76
4. Step 4: Simplify right side
   142,233.16x = 15,405,570,120.50
5. Step 5: Solve for x
   x = 15,405,570,120.50/142,233.16
6. Step 6: Final answer
   x = 108,312.09