Finding the Fourth Proportional to 51,398.47, 70,930.38 and 30,178.09

Step by Step Solution

1. Step 1: Write the proportion equation
   51,398.47 : 70,930.38 = 30,178.09 : x
2. Step 2: Convert to fraction form
   51,398.47/70,930.38 = 30,178.09/x
3. Step 3: Cross multiply
   51,398.47x = 70,930.38 × 30,178.09
4. Step 4: Simplify right side
   51,398.47x = 2,140,543,391.37
5. Step 5: Solve for x
   x = 2,140,543,391.37/51,398.47
6. Step 6: Final answer
   x = 41,646.05