Finding the Fourth Proportional to 23,389.56, 32,277.69 and 12,780.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,389.56 : 32,277.69 = 12,780.18 : x
2. Step 2: Convert to fraction form
   23,389.56/32,277.69 = 12,780.18/x
3. Step 3: Cross multiply
   23,389.56x = 32,277.69 × 12,780.18
4. Step 4: Simplify right side
   23,389.56x = 412,514,688.18
5. Step 5: Solve for x
   x = 412,514,688.18/23,389.56
6. Step 6: Final answer
   x = 17,636.70