Finding the Fourth Proportional to 23,721.35, 32,742.35 and 13,656.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,721.35 : 32,742.35 = 13,656.89 : x
2. Step 2: Convert to fraction form
   23,721.35/32,742.35 = 13,656.89/x
3. Step 3: Cross multiply
   23,721.35x = 32,742.35 × 13,656.89
4. Step 4: Simplify right side
   23,721.35x = 447,158,672.29
5. Step 5: Solve for x
   x = 447,158,672.29/23,721.35
6. Step 6: Final answer
   x = 18,850.47