Finding the Fourth Proportional to 17,739.37, 24,479.82 and 9,781.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,739.37 : 24,479.82 = 9,781.60 : x
2. Step 2: Convert to fraction form
   17,739.37/24,479.82 = 9,781.60/x
3. Step 3: Cross multiply
   17,739.37x = 24,479.82 × 9,781.60
4. Step 4: Simplify right side
   17,739.37x = 239,451,807.31
5. Step 5: Solve for x
   x = 239,451,807.31/17,739.37
6. Step 6: Final answer
   x = 13,498.33