Finding the Fourth Proportional to 13,167.09, 19,747.71 and 3,805.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,167.09 : 19,747.71 = 3,805.07 : x
2. Step 2: Convert to fraction form
   13,167.09/19,747.71 = 3,805.07/x
3. Step 3: Cross multiply
   13,167.09x = 19,747.71 × 3,805.07
4. Step 4: Simplify right side
   13,167.09x = 75,141,320.15
5. Step 5: Solve for x
   x = 75,141,320.15/13,167.09
6. Step 6: Final answer
   x = 5,706.75