Finding the Fourth Proportional to 23,496.42, 32,426.78 and 13,424.64

Step by Step Solution

1. Step 1: Write the proportion equation
   23,496.42 : 32,426.78 = 13,424.64 : x
2. Step 2: Convert to fraction form
   23,496.42/32,426.78 = 13,424.64/x
3. Step 3: Cross multiply
   23,496.42x = 32,426.78 × 13,424.64
4. Step 4: Simplify right side
   23,496.42x = 435,317,780.74
5. Step 5: Solve for x
   x = 435,317,780.74/23,496.42
6. Step 6: Final answer
   x = 18,526.99