Finding the Fourth Proportional to 17,544.70, 24,212.55 and 9,991.18

Step by Step Solution

1. Step 1: Write the proportion equation
   17,544.70 : 24,212.55 = 9,991.18 : x
2. Step 2: Convert to fraction form
   17,544.70/24,212.55 = 9,991.18/x
3. Step 3: Cross multiply
   17,544.70x = 24,212.55 × 9,991.18
4. Step 4: Simplify right side
   17,544.70x = 241,911,945.31
5. Step 5: Solve for x
   x = 241,911,945.31/17,544.70
6. Step 6: Final answer
   x = 13,788.32