Finding the Fourth Proportional to 23,780.22, 32,815.74 and 13,169.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,780.22 : 32,815.74 = 13,169.22 : x
2. Step 2: Convert to fraction form
   23,780.22/32,815.74 = 13,169.22/x
3. Step 3: Cross multiply
   23,780.22x = 32,815.74 × 13,169.22
4. Step 4: Simplify right side
   23,780.22x = 432,157,699.52
5. Step 5: Solve for x
   x = 432,157,699.52/23,780.22
6. Step 6: Final answer
   x = 18,172.99