Finding the Fourth Proportional to 13,164.73, 19,744.90 and 4,399.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.73 : 19,744.90 = 4,399.62 : x
2. Step 2: Convert to fraction form
   13,164.73/19,744.90 = 4,399.62/x
3. Step 3: Cross multiply
   13,164.73x = 19,744.90 × 4,399.62
4. Step 4: Simplify right side
   13,164.73x = 86,869,971.90
5. Step 5: Solve for x
   x = 86,869,971.90/13,164.73
6. Step 6: Final answer
   x = 6,598.69