Finding the Fourth Proportional to 30,801.82, 42,513.10 and 19,464.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,801.82 : 42,513.10 = 19,464.10 : x
2. Step 2: Convert to fraction form
   30,801.82/42,513.10 = 19,464.10/x
3. Step 3: Cross multiply
   30,801.82x = 42,513.10 × 19,464.10
4. Step 4: Simplify right side
   30,801.82x = 827,479,229.71
5. Step 5: Solve for x
   x = 827,479,229.71/30,801.82
6. Step 6: Final answer
   x = 26,864.62