Finding the Fourth Proportional to 22,147.48, 30,559.91 and 13,191.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,147.48 : 30,559.91 = 13,191.71 : x
2. Step 2: Convert to fraction form
   22,147.48/30,559.91 = 13,191.71/x
3. Step 3: Cross multiply
   22,147.48x = 30,559.91 × 13,191.71
4. Step 4: Simplify right side
   22,147.48x = 403,137,460.59
5. Step 5: Solve for x
   x = 403,137,460.59/22,147.48
6. Step 6: Final answer
   x = 18,202.41