Finding the Fourth Proportional to 19,918.31, 29,895.89 and 10,064.49

Step by Step Solution

1. Step 1: Write the proportion equation
   19,918.31 : 29,895.89 = 10,064.49 : x
2. Step 2: Convert to fraction form
   19,918.31/29,895.89 = 10,064.49/x
3. Step 3: Cross multiply
   19,918.31x = 29,895.89 × 10,064.49
4. Step 4: Simplify right side
   19,918.31x = 300,886,723.51
5. Step 5: Solve for x
   x = 300,886,723.51/19,918.31
6. Step 6: Final answer
   x = 15,106.04