Finding the Fourth Proportional to 142,496.20, 213,715.14 and 49,009.24

Step by Step Solution

1. Step 1: Write the proportion equation
   142,496.20 : 213,715.14 = 49,009.24 : x
2. Step 2: Convert to fraction form
   142,496.20/213,715.14 = 49,009.24/x
3. Step 3: Cross multiply
   142,496.20x = 213,715.14 × 49,009.24
4. Step 4: Simplify right side
   142,496.20x = 10,474,016,587.89
5. Step 5: Solve for x
   x = 10,474,016,587.89/142,496.20
6. Step 6: Final answer
   x = 73,503.83