Finding the Fourth Proportional to 51,046.58, 70,448.26 and 30,629.42

Step by Step Solution

1. Step 1: Write the proportion equation
   51,046.58 : 70,448.26 = 30,629.42 : x
2. Step 2: Convert to fraction form
   51,046.58/70,448.26 = 30,629.42/x
3. Step 3: Cross multiply
   51,046.58x = 70,448.26 × 30,629.42
4. Step 4: Simplify right side
   51,046.58x = 2,157,789,343.81
5. Step 5: Solve for x
   x = 2,157,789,343.81/51,046.58
6. Step 6: Final answer
   x = 42,270.99