Finding the Fourth Proportional to 17,735.98, 24,476.78 and 9,778.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,735.98 : 24,476.78 = 9,778.21 : x
2. Step 2: Convert to fraction form
   17,735.98/24,476.78 = 9,778.21/x
3. Step 3: Cross multiply
   17,735.98x = 24,476.78 × 9,778.21
4. Step 4: Simplify right side
   17,735.98x = 239,339,094.96
5. Step 5: Solve for x
   x = 239,339,094.96/17,735.98
6. Step 6: Final answer
   x = 13,494.55