Finding the Fourth Proportional to 142,561.28, 213,839.68 and 49,067.84

Step by Step Solution

1. Step 1: Write the proportion equation
   142,561.28 : 213,839.68 = 49,067.84 : x
2. Step 2: Convert to fraction form
   142,561.28/213,839.68 = 49,067.84/x
3. Step 3: Cross multiply
   142,561.28x = 213,839.68 × 49,067.84
4. Step 4: Simplify right side
   142,561.28x = 10,492,651,203.89
5. Step 5: Solve for x
   x = 10,492,651,203.89/142,561.28
6. Step 6: Final answer
   x = 73,600.99