Finding the Fourth Proportional to 23,495.47, 32,423.59 and 12,740.39

Step by Step Solution

1. Step 1: Write the proportion equation
   23,495.47 : 32,423.59 = 12,740.39 : x
2. Step 2: Convert to fraction form
   23,495.47/32,423.59 = 12,740.39/x
3. Step 3: Cross multiply
   23,495.47x = 32,423.59 × 12,740.39
4. Step 4: Simplify right side
   23,495.47x = 413,089,157.20
5. Step 5: Solve for x
   x = 413,089,157.20/23,495.47
6. Step 6: Final answer
   x = 17,581.65