Finding the Fourth Proportional to 23,718.78, 32,731.61 and 13,108.19

Step by Step Solution

1. Step 1: Write the proportion equation
   23,718.78 : 32,731.61 = 13,108.19 : x
2. Step 2: Convert to fraction form
   23,718.78/32,731.61 = 13,108.19/x
3. Step 3: Cross multiply
   23,718.78x = 32,731.61 × 13,108.19
4. Step 4: Simplify right side
   23,718.78x = 429,051,933.69
5. Step 5: Solve for x
   x = 429,051,933.69/23,718.78
6. Step 6: Final answer
   x = 18,089.12