Finding the Fourth Proportional to 142,419.60, 213,633.72 and 48,924

Step by Step Solution

1. Step 1: Write the proportion equation
   142,419.60 : 213,633.72 = 48,924 : x
2. Step 2: Convert to fraction form
   142,419.60/213,633.72 = 48,924/x
3. Step 3: Cross multiply
   142,419.60x = 213,633.72 × 48,924
4. Step 4: Simplify right side
   142,419.60x = 10,451,816,117.28
5. Step 5: Solve for x
   x = 10,451,816,117.28/142,419.60
6. Step 6: Final answer
   x = 73,387.48