Finding the Fourth Proportional to 50,816.07, 70,128.81 and 30,672.68

Step by Step Solution

1. Step 1: Write the proportion equation
   50,816.07 : 70,128.81 = 30,672.68 : x
2. Step 2: Convert to fraction form
   50,816.07/70,128.81 = 30,672.68/x
3. Step 3: Cross multiply
   50,816.07x = 70,128.81 × 30,672.68
4. Step 4: Simplify right side
   50,816.07x = 2,151,038,197.27
5. Step 5: Solve for x
   x = 2,151,038,197.27/50,816.07
6. Step 6: Final answer
   x = 42,329.88