Finding the Fourth Proportional to 23,855.16, 32,917.32 and 13,242.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,855.16 : 32,917.32 = 13,242.18 : x
2. Step 2: Convert to fraction form
   23,855.16/32,917.32 = 13,242.18/x
3. Step 3: Cross multiply
   23,855.16x = 32,917.32 × 13,242.18
4. Step 4: Simplify right side
   23,855.16x = 435,897,076.56
5. Step 5: Solve for x
   x = 435,897,076.56/23,855.16
6. Step 6: Final answer
   x = 18,272.65