Finding the Fourth Proportional to 17,485.22, 24,129.56 and 9,931.18

Step by Step Solution

1. Step 1: Write the proportion equation
   17,485.22 : 24,129.56 = 9,931.18 : x
2. Step 2: Convert to fraction form
   17,485.22/24,129.56 = 9,931.18/x
3. Step 3: Cross multiply
   17,485.22x = 24,129.56 × 9,931.18
4. Step 4: Simplify right side
   17,485.22x = 239,635,039.39
5. Step 5: Solve for x
   x = 239,635,039.39/17,485.22
6. Step 6: Final answer
   x = 13,705.01