Finding the Fourth Proportional to 23,731.56, 32,746.68 and 13,121.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,731.56 : 32,746.68 = 13,121.37 : x
2. Step 2: Convert to fraction form
   23,731.56/32,746.68 = 13,121.37/x
3. Step 3: Cross multiply
   23,731.56x = 32,746.68 × 13,121.37
4. Step 4: Simplify right side
   23,731.56x = 429,681,304.55
5. Step 5: Solve for x
   x = 429,681,304.55/23,731.56
6. Step 6: Final answer
   x = 18,105.90