Finding the Fourth Proportional to 22,405.42, 33,571.15 and 13,019.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,405.42 : 33,571.15 = 13,019.09 : x
2. Step 2: Convert to fraction form
   22,405.42/33,571.15 = 13,019.09/x
3. Step 3: Cross multiply
   22,405.42x = 33,571.15 × 13,019.09
4. Step 4: Simplify right side
   22,405.42x = 437,065,823.25
5. Step 5: Solve for x
   x = 437,065,823.25/22,405.42
6. Step 6: Final answer
   x = 19,507.15