Finding the Fourth Proportional to 23,389.57, 32,277.72 and 12,779.38

Step by Step Solution

1. Step 1: Write the proportion equation
   23,389.57 : 32,277.72 = 12,779.38 : x
2. Step 2: Convert to fraction form
   23,389.57/32,277.72 = 12,779.38/x
3. Step 3: Cross multiply
   23,389.57x = 32,277.72 × 12,779.38
4. Step 4: Simplify right side
   23,389.57x = 412,489,249.41
5. Step 5: Solve for x
   x = 412,489,249.41/23,389.57
6. Step 6: Final answer
   x = 17,635.61