Finding the Fourth Proportional to 23,731.89, 32,748.96 and 13,121.29

Step by Step Solution

1. Step 1: Write the proportion equation
   23,731.89 : 32,748.96 = 13,121.29 : x
2. Step 2: Convert to fraction form
   23,731.89/32,748.96 = 13,121.29/x
3. Step 3: Cross multiply
   23,731.89x = 32,748.96 × 13,121.29
4. Step 4: Simplify right side
   23,731.89x = 429,708,617.69
5. Step 5: Solve for x
   x = 429,708,617.69/23,731.89
6. Step 6: Final answer
   x = 18,106.80