Finding the Fourth Proportional to 23,149.32, 31,945.96 and 12,538.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,149.32 : 31,945.96 = 12,538.96 : x
2. Step 2: Convert to fraction form
   23,149.32/31,945.96 = 12,538.96/x
3. Step 3: Cross multiply
   23,149.32x = 31,945.96 × 12,538.96
4. Step 4: Simplify right side
   23,149.32x = 400,569,114.60
5. Step 5: Solve for x
   x = 400,569,114.60/23,149.32
6. Step 6: Final answer
   x = 17,303.71