Finding the Fourth Proportional to 23,727.60, 32,740.50 and 13,117.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,727.60 : 32,740.50 = 13,117.31 : x
2. Step 2: Convert to fraction form
   23,727.60/32,740.50 = 13,117.31/x
3. Step 3: Cross multiply
   23,727.60x = 32,740.50 × 13,117.31
4. Step 4: Simplify right side
   23,727.60x = 429,467,296.32
5. Step 5: Solve for x
   x = 429,467,296.32/23,727.60
6. Step 6: Final answer
   x = 18,099.90