Finding the Fourth Proportional to 49,665.73, 74,498.69 and 12,226.51

Step by Step Solution

1. Step 1: Write the proportion equation
   49,665.73 : 74,498.69 = 12,226.51 : x
2. Step 2: Convert to fraction form
   49,665.73/74,498.69 = 12,226.51/x
3. Step 3: Cross multiply
   49,665.73x = 74,498.69 × 12,226.51
4. Step 4: Simplify right side
   49,665.73x = 910,858,978.27
5. Step 5: Solve for x
   x = 910,858,978.27/49,665.73
6. Step 6: Final answer
   x = 18,339.79