Finding the Fourth Proportional to 17,781.45, 24,538.89 and 9,824.19

Step by Step Solution

1. Step 1: Write the proportion equation
   17,781.45 : 24,538.89 = 9,824.19 : x
2. Step 2: Convert to fraction form
   17,781.45/24,538.89 = 9,824.19/x
3. Step 3: Cross multiply
   17,781.45x = 24,538.89 × 9,824.19
4. Step 4: Simplify right side
   17,781.45x = 241,074,662.57
5. Step 5: Solve for x
   x = 241,074,662.57/17,781.45
6. Step 6: Final answer
   x = 13,557.65